Oh, Just add a Dutch keyboard.
Or click on the language and select don't translate from Dutch and Afrikaans when the translation message appears.
Discussion
Usually microblog apps would have a translation button for each message. That is helpful, should something appear in your timeline that you dont understand.
Having translation for everything, even where i dont need it, feels intrusive and it annoyed me. Maybe my problem is that i can read Dutch English German and French. So in many cases i dont need translations at all.
Yeah, you should just disable those languages. If you can read them, there is no point in translating it.
I am sure you appreciate when something in Japanese or Arabic pops in and you can read it.
Nothing against an option of everything translated but I prefer the origjnal source and an optional translation button.