Translation:Later, she went to Taiwan to learn Chinese.
It's the clumsiest of the clumsy. It should be:
"she later went to taiwan to study chinese"
Agreed, I struggled to remember their correct answer even after being told and having the prompts.
It should be accepted now. (February 17, 2019) Usually Duolingo is flexible about where you put the 'time' word.
I think it sounds better in English to say "she then went to Taiwan to study Chinese"
Also: (Later) She (later) went to Taiwan to study/learn Chinese (later).
The proposed answer isn't really correct English. I think a better translation would be "afterwards, she went to Taiwan to learn Chinese"