Camptothecin
n. 喜树碱(可用以治疗癌症)
🔁 扩展释义
【化】 喜树碱
🗣️ 情景例句
The little boy held his mother's hand firmly when crossing the street.
那小男孩过马路时紧抓着母亲的手。
Poverty on an old man's back is a heavy burden.
老而贫穷，负担沈重。
I'm eleven. How old are you?
我11岁。你多大？