Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
Right. We don't have any cinnamon.
对。我们没有肉桂了。
I ask him to tell me the truth about everything.
我要求他告诉我每件事的事实。
I've no idea. What do you think?
我不知道。你想干啥？