Returned acid
[化] 回流酸
🧩 词语组成解析
returned
[ri'tə:nd]
adj. 被送回的，归来的;
v. 返回，回来( return的过去式和过去分词 );恢复;还;归还;
🗣️ 情景例句
This Friday.
这个星期五。
I hope I'll get a big pay raise.
但愿薪水大大提高一下。
When several elephants are being trained at one time,
几只象同时训练时，