For all other languages, putting Translate Hello to Spanish (for example) successfully translates it.
For Chinese however, translation fails.
Typing Translate Hello to Chinese, displays the English to English translation of the word Hello.
I'd expect it to default to the below:
I'm guessing it has to do with Chinese having Chinese (Simplified) and Chinese (Traditional). In this case, I'd say it would make sense to default it to Chinese (Simplified) as it has the most speakers worldwide.