diff --git a/be/src/common/config.h b/be/src/common/config.h
index 85c1f6d5a018ea..c75d434dee600d 100644
--- a/be/src/common/config.h
+++ b/be/src/common/config.h
@@ -204,7 +204,8 @@ CONF_mInt32(tablet_rowset_stale_sweep_time_sec, "1800");
 CONF_Int32(max_garbage_sweep_interval, "3600");
 CONF_Int32(min_garbage_sweep_interval, "180");
 CONF_mInt32(snapshot_expire_time_sec, "172800");
-// 仅仅是建议值，当磁盘空间不足时，trash下的文件保存期可不遵守这个参数
+// It is only a recommended value. When the disk space is insufficient, 
+// the file storage period under trash dose not have to comply with this parameter.
 CONF_mInt32(trash_file_expire_time_sec, "259200");
 // check row nums for BE/CE and schema change. true is open, false is closed.
 CONF_mBool(row_nums_check, "true");