Nicotyrin
雪茄碱; 烟碱烯; 二烯烟碱
🗣️ 情景例句
The policemen could not cope with the crowds.
警察不能对付群众。
My brother was discharged from hospital last week.
我兄弟是上周出院的。
May I borrow it, please?
我可以借用一下吗？