If you have a more significant project, in that case, you need a human translation.
In May 2014, Google acquired to improve the quality of visual and voice translation.
Volunteers can select up to five languages to help improve translation; users can verify translated phrases and translate phrases in their languages to and from English, helping to improve the accuracy of translating more rare and complex phrases.
The same option is not available on the paid API version.
As of early 2018 Translate is sufficiently accurate to make the Russian Wikipedia accessible to those who can read English.
Google translate tool is accurate and fast.