Polycyclic compound
[化] 多环化合物
🧩 词语组成解析
a. 多环的\\n[医] 多环的
🗣️ 情景例句
Keep trying! don't give up the ship.
继续努力！ 别轻易放弃！
How long did it last?
持续了多久？
Suddenly a raft appeared, looking rather like Noah's ark, carrying the whole family, a few hens, the dogs, cat, and bird in a cage.
突然，出现了一只筏子，看起来很像诺亚方舟，上面载着他们全家老小，还有几只母鸡、几只狗，一只猫与一只鸟笼，那里头有一只小鸟。