Opsopyrrol
[醫] 3-甲[基]-4-乙[基]吡咯
??? 情景例句
I have to sign copies of my book for a lot of people
我還必須為許多人在我的書上簽名
If the beard were all, the goat might preach.
如果有了需就什么都行，那么山羊也可以說教了。
Professors from the university in Paris would be coming down by train.
巴黎那些大學的教授們將會坐火車來這里。