Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
I received a letter from my parents this morning.
今天早上我收到父母一封信。
He stole my purse!
他偷了我的手袋！
I can set up a tour next week.
我可以安排在下个礼拜参观。