diff --git a/po/R-zh_CN.po b/po/R-zh_CN.po
index 893b189c88..1c96ee3400 100644
--- a/po/R-zh_CN.po
+++ b/po/R-zh_CN.po
@@ -1540,86 +1540,86 @@ msgid "the regex \""
 msgstr "正则 \""
 
 msgid "\". Please double check the input file is a valid csvy."
-msgstr ""
+msgstr "从这里开始"
 
 msgid "User-supplied 'header' will override that found in metadata."
-msgstr ""
+msgstr "用户提供的“header”将覆盖元数据中的表头"
 
 msgid ""
 "User-supplied column names in 'col.names' will override those found in YAML "
 "metadata."
-msgstr ""
+msgstr "用户在“col.names”中提供的列名将覆盖在YAML元数据中找到的列名"
 
 msgid ""
 "colClasses dictated by user input and those read from YAML header are in "
 "conflict (specifically, for column"
-msgstr ""
+msgstr "用户输入指定的列类型和从YAML列名中读取的列类型发生冲突（特别是column"
 
 msgid "s"
-msgstr ""
+msgstr "s"
 
 msgid "["
-msgstr ""
+msgstr "["
 
 msgid "]); the proceeding assumes the user input was"
-msgstr ""
+msgstr "]); 该过程假定用户输入的是"
 
 msgid ""
 "an intentional override and will ignore the types implied by the YAML "
 "header; please exclude"
-msgstr ""
+msgstr "有意覆盖的，因此将忽略YAML表头所指示的列类型；请排除"
 
 msgid "these columns"
-msgstr ""
+msgstr "这些列"
 
 msgid "this column from colClasses if this was unintentional."
-msgstr ""
+msgstr "如果不想覆盖，请将这些列从colClasses中排除"
 
 msgid "User-supplied 'sep' will override that found in metadata."
-msgstr ""
+msgstr "用户提供的“sep”将覆盖元数据中的分隔符"
 
 msgid "User-supplied 'quote' will override that found in metadata."
-msgstr ""
+msgstr "用户提供的“quote”将覆盖元数据中的引号"
 
 msgid "User-supplied 'dec' will override that found in metadata."
-msgstr ""
+msgstr "用户提供的“dec”将覆盖元数据中的小数点分隔符"
 
 msgid "User-supplied 'na.strings' will override that found in metadata."
-msgstr ""
+msgstr "用户提供的“na.strings”将覆盖元数据中对默认值的预处理"
 
 msgid "Column '"
-msgstr ""
+msgstr "列"
 
 msgid "' was requested to be '"
-msgstr ""
+msgstr "被要求为"
 
 msgid "' but fread encountered the following"
-msgstr ""
+msgstr "但是fread遇到了以下问题"
 
 msgid "error"
-msgstr ""
+msgstr "错误"
 
 msgid "warning"
-msgstr ""
+msgstr "警告"
 
 msgid ":"
-msgstr ""
+msgstr "："
 
 msgid "so the column has been left as type '"
-msgstr ""
+msgstr "所以该列已经被保存为类型"
 
 msgid ""
 "key argument of data.table() must be a character vector naming columns (NB: "
 "col.names are applied before this)"
-msgstr ""
+msgstr "data.table()的关键参数必须是字符向量命名的列（NB:col.names在这之前被使用过）"
 
 msgid ""
 "index argument of data.table() must be a character vector naming columns "
 "(NB: col.names are applied before this)"
-msgstr ""
+msgstr "data.table()的index参数必须是字符向量命名的列（NB:参数col.names在这之前被使用过）"
 
 msgid "dateTimeAs must be a single string"
-msgstr ""
+msgstr "dataTimeAs 必须是单个字符串"
 
 msgid "dateTimeAs must be 'ISO','squash','epoch' or 'write.csv'"
 msgstr "dateTimeAs 必须是 'ISO'，'squash'，'epoch' 或 'write.csv'"
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 6d05492213..8810774d3a 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -3027,101 +3027,110 @@ msgstr ""
 #: fsort.c:156
 #, c-format
 msgid "Range = [%g,%g]\n"
-msgstr ""
+msgstr "Range = [%g,%g]\n"
 
 #: fsort.c:157
 msgid "Cannot yet handle negatives."
-msgstr ""
+msgstr "目前无法处理负值。"
 
 #: fsort.c:170
 #, c-format
 msgid "maxBit=%d; MSBNbits=%d; shift=%d; MSBsize=%d\n"
-msgstr ""
+msgstr "maxBit=%d; MSBNbits=%d; shift=%d; MSBsize=%d\n"
 
 #: fsort.c:173
 msgid "Unable to allocate working memory"
-msgstr ""
+msgstr "无法分配工作内存"
 
 #: fsort.c:177
 #, c-format
 msgid ""
-"counts is %dMB (%d pages per nBatch=%d, batchSize=%<PRIu64>, lastBatchSize="
-"%<PRIu64>)\n"
-msgstr ""
+"counts is %dMB (%d pages per nBatch=%d, batchSize=%<PRIu64>, lastBatchSize=%<PRIu64>)\n"
+msgstr "counts为%dMB (每个nBatch中的%d页=%d, batchSize=%<PRIu64>, lastBatchSize=%<PRIu64>)\n"
 
 #: fsort.c:231
 msgid "Internal error: counts[nBatch-1][MSBsize-1] != length(x)"
-msgstr ""
+msgstr "内部错误：counts[nBatch-1][MSBsize-1] 不等于 length(x)"
 
 #: fsort.c:247
 msgid "Top 5 MSB counts: "
-msgstr ""
+msgstr "前5个MSB counts："
 
 #: fsort.c:247
 #, c-format
 msgid "%<PRId64> "
-msgstr ""
+msgstr "%<PRId64> "
 
 #: fsort.c:247 fwrite.c:693 fwrite.c:950
 msgid "\n"
-msgstr ""
+msgstr "\n"
 
 #: fsort.c:248
 #, c-format
 msgid "Reduced MSBsize from %d to "
-msgstr ""
+<<<<<<< HEAD
+msgstr "MSB��С �� %d ���ٵ�%d"
+=======
+msgstr "MSBsize 从 %d 减少到"
+>>>>>>> a9485c1829c5d28082736eded48ccc8aaad51393
 
 #: fsort.c:252
 #, c-format
 msgid "%d by excluding 0 and 1 counts\n"
-msgstr ""
+<<<<<<< HEAD
+msgstr "ͨ���ų�0��1��counts"
+=======
+msgstr "%d 通过排除0和1的counts\n"
+>>>>>>> a9485c1829c5d28082736eded48ccc8aaad51393
 
 #: fsort.c:309
 #, c-format
 msgid "%d: %.3f (%4.1f%%)\n"
-msgstr ""
+msgstr "%d: %.3f (%4.1f%%)\n"
 
 #: fwrite.c:604
 #, c-format
 msgid "buffMB=%d outside [1,1024]"
-msgstr ""
+msgstr "buffMB=%d 在[1,1024]之外"
 
 #: fwrite.c:611
 #, c-format
 msgid ""
 "eol must be 1 or more bytes (usually either \\n or \\r\\n) but is length %d"
-msgstr ""
+msgstr "eol必须是1或更多的字节（通常是either\\n 或 \\r\\n）但是长度为%d"
 
 #: fwrite.c:614
 msgid "Column writers: "
-msgstr ""
+msgstr "数据写入： "
 
 #: fwrite.c:616 fwrite.c:618 fwrite.c:620
 #, c-format
 msgid "%d "
-msgstr ""
+msgstr "%d "
 
 #: fwrite.c:619
 msgid "... "
-msgstr ""
+msgstr "... "
 
 #: fwrite.c:622
 #, c-format
 msgid ""
 "\n"
-"args.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%<PRId64> args.ncol="
-"%d eolLen=%d\n"
-msgstr ""
+"args.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%<PRId64> args.ncol=%d "
+"eolLen=%d\n"
+msgstr "\n"
+"args.doRowNames=%d args.rowNames=%d doQuote=%d args.nrow=%<PRId64> args.ncol=%d "
+"eolLen=%d\n"
 
 #: fwrite.c:655
 #, c-format
 msgid "Internal error: type %d has no max length method implemented"
-msgstr ""
+msgstr "内部错误："
 
 #: fwrite.c:662
 #, c-format
 msgid "maxLineLen=%<PRIu64>. Found in %.3fs\n"
-msgstr ""
+msgstr "maxLineLen=%<PRIu64>. 在%.3fs中发现\n"
 
 #: fwrite.c:682
 #, c-format
@@ -3129,7 +3138,8 @@ msgid ""
 "%s: '%s'. Failed to open existing file for writing. Do you have write "
 "permission to it? Is this Windows and does another process such as Excel "
 "have it open?"
-msgstr ""
+msgstr "%s: '%s'. 无法打开一斤存在的文件进行写入.你是否对该文件有写入权限？"
+"这是Windows系统？是否有Excel之类的进程已经打开了该文件？"
 
 #: fwrite.c:683
 #, c-format
@@ -3137,79 +3147,78 @@ msgid ""
 "%s: '%s'. Unable to create new file for writing (it does not exist already). "
 "Do you have permission to write here, is there space on the disk and does "
 "the path exist?"
-msgstr ""
+msgstr "%s: '%s'. 无法创建新的文件进行写入（文件不存在）"
+"你是否对此有写入权限？磁盘上是否有空间以及路径是否存在？"
 
 #: fwrite.c:691
 #, c-format
 msgid "Writing bom (%s), yaml (%d characters) and column names (%s) ... "
-msgstr ""
+msgstr "正在写入bom (%s), yaml (%d characters) 和 column names (%s) ..."
 
 #: fwrite.c:704
 #, c-format
 msgid "Unable to allocate %d MiB for header: %s"
-msgstr ""
+msgstr "无法为header: %s分配%d MiB"
 
 #: fwrite.c:732 fwrite.c:792
 msgid "Can't allocate gzip stream structure"
-msgstr ""
+msgstr "无法分配gzip的流结构"
 
 #: fwrite.c:738
 #, c-format
 msgid "Unable to allocate %d MiB for zbuffer: %s"
-msgstr ""
+msgstr "无法为zbuffer: %s分配%d MiB"
 
 #: fwrite.c:753
 #, c-format
 msgid "Compress gzip error: %d"
-msgstr ""
+msgstr "解压gzip错误: %d"
 
 #: fwrite.c:754 fwrite.c:762 fwrite.c:956
 #, c-format
 msgid "%s: '%s'"
-msgstr ""
+msgstr "%s: '%s'"
 
 #: fwrite.c:759
 #, c-format
 msgid "done in %.3fs\n"
-msgstr ""
+msgstr "%.3fs完成\n"
 
 #: fwrite.c:761
 msgid "No data rows present (nrow==0)\n"
-msgstr ""
+msgstr "当前没有数据行(nrow==0)\n"
 
 #: fwrite.c:779
 #, c-format
 msgid ""
 "Writing %<PRId64> rows in %d batches of %d rows (each buffer size %dMB, "
 "showProgress=%d, nth=%d)\n"
-msgstr ""
+msgstr "正在%d行的批处理中写入%lld行(每个缓存的大小为%dMB，showProgress=%d, nth=%d)\n)"
 
 #: fwrite.c:964
 #, c-format
-msgid ""
-"zlib %s (zlib.h %s) deflate() returned error %d with z_stream->msg==\"%s\" "
-"Z_FINISH=%d Z_BLOCK=%d. %s"
-msgstr ""
+msgid "zlib v%s deflate() returned error %d with z_stream.msg '%s'. %s\n"
+msgstr "zlib v%s deflate()使用%d with z_stream.msg '%s'. %s返回了错误\n"
 
 #: fwrite.c:966
 msgid ""
 "Please include the full output above and below this message in your data."
 "table bug report."
-msgstr ""
+msgstr "请将此消息上方和下方的全部输出结果一起提交到data.table的bug report中"
 
 #: fwrite.c:967
 msgid ""
 "Please retry fwrite() with verbose=TRUE and include the full output with "
 "your data.table bug report."
-msgstr ""
+msgstr "请使用verbose=TRUE重试fwrite()，并将完整的输出提交到data.table的bug report中"
 
 #: fwriteR.c:41
 msgid "Internal error: col passed to getMaxCategLen is missing levels"
-msgstr ""
+msgstr "内部错误：传递给getMaxCateLen的col正在丢失级别"
 
 #: fwriteR.c:75
 msgid "Internal error: getMaxListItemLen should have caught this up front."
-msgstr ""
+msgstr "内部错误：getMaxListItemLen应该已经预先抓取了这个"
 
 #: fwriteR.c:98
 #, c-format
@@ -3217,64 +3226,76 @@ msgid ""
 "Row %d of list column is type '%s' - not yet implemented. fwrite() can write "
 "list columns containing items which are atomic vectors of type logical, "
 "integer, integer64, double, complex and character."
-msgstr ""
+msgstr "列表页行%d的类型是'%s' - 尚未实施. fwrite()可以写入"
+"包含逻辑类型原子向量项目的列表页，"
+"整数，整数64，双精度，复数和字符"
 
 #: fwriteR.c:103
 #, c-format
 msgid ""
 "Internal error: row %d of list column has no max length method implemented"
-msgstr ""
+msgstr "内部错误：列表页的%d行没有实现最大长度方法"
 
 #: fwriteR.c:170
 msgid ""
 "fwrite must be passed an object of type list; e.g. data.frame, data.table"
-msgstr ""
+msgstr "fwrite必须传递一个类型为列表的对象；比如data.frame, data.table"
 
 #: fwriteR.c:179
 msgid "fwrite was passed an empty list of no columns. Nothing to write."
-msgstr ""
+msgstr "fwrite传递了一个没有列的空列表. 没有对象可以写入"
 
 #: fwriteR.c:234
 #, c-format
 msgid "Column %d's length (%d) is not the same as column 1's length (%d)"
-msgstr ""
+msgstr "列%d的长度(%d)和列1的长度(%d)不一致"
 
 #: fwriteR.c:237
 #, c-format
 msgid "Column %d's type is '%s' - not yet implemented in fwrite."
-msgstr ""
+msgstr "列%d的类型是'%s' - 尚未在fwrite中实施"
 
 #: fwriteR.c:262
 msgid ""
 "No list columns are present. Setting sep2='' otherwise quote='auto' would "
 "quote fields containing sep2.\n"
-msgstr ""
+msgstr "当前没有列表页. 设置sep2=''否则quote='auto'会自动为所有包含sep2的字段加上引号.\n"
 
 #: fwriteR.c:266
 #, c-format
 msgid ""
 "If quote='auto', fields will be quoted if the field contains either sep "
 "('%c') or sep2 ('%c') because column %d is a list column.\n"
-msgstr ""
+<<<<<<< HEAD
+msgstr "��������趨quote = 'auto'������%d�����б�ҳ�����а���sep('%c') �� sep2 ('%c')���ֶν��ᱻ�Զ���������"
+=======
+msgstr "如果quote='auto', 字段包含任意一个sep，字段将被引用"
+>>>>>>> a9485c1829c5d28082736eded48ccc8aaad51393
 
 #: fwriteR.c:270
 #, c-format
-msgid ""
+msgid ""2019-12-28
 "sep ('%c'), sep2 ('%c') and dec ('%c') must all be different. Column %d is a "
 "list column."
-msgstr ""
+<<<<<<< HEAD
+msgstr "sep ('%c'), sep2 ('%c') �� dec ('%c') ���붼����ͬ. �� %d ��һ��"
+"�б�ҳ"
+=======
+msgstr "sep ('%c'), sep2 ('%c') 和 dec ('%c') 必须都不相同. 列 %d 是一个"
+"空列表"
+>>>>>>> a9485c1829c5d28082736eded48ccc8aaad51393
 
 #: gsumm.c:43
 msgid "env is not an environment"
-msgstr ""
+msgstr "env不是环境"
 
 #: gsumm.c:45
 msgid "o is not an integer vector"
-msgstr ""
+msgstr "o不是整数向量"
 
 #: gsumm.c:46
 msgid "f is not an integer vector"
-msgstr ""
+msgstr "f不是一个整数向量"
 
 #: gsumm.c:47
 msgid "l is not an integer vector"