experiment + on 拿...做試驗
Have they ever experimented on animals?
他們可曾在動物身上實驗過？
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Our apps:
Lite version
https://play.google.com/store/apps/details?id=tc.engsoft.QA_lite
Full version
https://play.google.com/store/apps/details?id=tc.engsoft.QA
We are a group of programmers and teachers. We would like to develop apps to help students learn English easily and interactively.
and English Challenge app:
ReplyDeletehttps://play.google.com/store/apps/details?id=englishchallenge.free