Hexahydropyridine
[化] 哌啶
🗣️ 情景例句
Nice work.
干得好。
I would like to call an eletrician to come this afternoon.
我要叫一个电器师傅今天下午来。
have been frightened out of their wits by giant fish bumping into them as they work.
他们曾在工作时被撞到他们身上的大鱼吓得惊惶失措。