Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
Oh yes, yes. My husband's there now.
啊， 对 对。我丈夫现在就在那儿。
All work and no play make Jack a dull boy.
尽量学，尽情玩。
Hi, this is Steve. Is Pippa there?
你好。我是史蒂夫。皮帕在那吗？