Nicotyrin
雪茄碱; 烟碱烯; 二烯烟碱
🗣️ 情景例句
I hope to come back to the mode of payment.
我希望回过头来讨论付款方式。
Lovers live by love,as larks live by leeks.
情侣靠爱情生活，正象云雀靠韭葱生活一样。
Number 13 buses run much more frequently, don't they?
13路车跑得更勤，是不是？