Dhas
(DHA 的复数) [化] 二十二碳六烯酸
🗣️ 情景例句
It's a big decision for me, Bill.
对我来说这是个大决定， Bill。
How often did I tell you not to yell in the house?
我告诉你多少次不要在房子里大叫?
What happened before printing was invented?
印刷术发明以前是怎么一回事？