This is not the first time when they have added an additional translating language to their site before that they had opened six another languages on May 16th
According to them, If you see a translation that doesn’t feel right, the best way to fix it is to log into the Translation Center and vote for the best choice.
The phrase score will adjust over time, and the right translation will find its way into Twitter.com. If you see inconsistencies in the content, you can get involved in the discussions with your community at the language forums.
If you want to request Twitter in your language, please let us know here. You can follow more news from the International Team, and meet some of the volunteers behind our translations, on the International Blog.