Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
Do you hike or fish on your trips?
旅游时，你会步行或钓鱼吗？
That house is for sale. It has central heating.
此房出售，房子里有供暖设备。
Look at Mr Thin. He was poor. He didn't have much money.
瞧瘦先生。他很穷。他没有很多钱。