Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
Their marriage is breaking up.
他们的婚姻已经破裂。
Take time while time is, for time will be away.
有时间要加以利用，因为时间是要消逝的。
and he is very pound of the fact.
他甚至引以为自豪。