Multiring hydrocarbon
[化] 多环芳香烃
🧩 词语组成解析
[计] 多环
🗣️ 情景例句
Examinations are at hand.
考试在即。
For a lost thing care nothing.
一事之失，不必介意。
As usual, the police will have a difficult time.
同往常一样，警察的日子将不好过，