🧩 词语组成解析
[化] 乙酰; 乙酰基
group
[ɡrup]
n. 组，团体;群，批;（雕塑等的）群像;（英美的）空军大队;
vt.& vi. 使成群，集合;
vt. 分类，归类;
🗣️ 情景例句
and they're having their tonsils out.
他们也将切除扁桃腺。
We have a vision of the future.
我们对未来有一番憧憬。
I'd like to invite you to dinner before you go. What about Thursday?
我想在你走之前请你吃饭。周四怎么样？