Error: 403 User Rate Limit Exceeded

Hi, 

Is it true that without a paid account the translation API will continue throwing the following error: 
```
code: 403,
  errors: 
   [ { message: 'User Rate Limit Exceeded',
       domain: 'usageLimits',
       reason: 'userRateLimitExceeded' } ],
  response: undefined,
  message: 'User Rate Limit Exceeded' }
```