Acetylation
乙酰化作用
🗣️ 情景例句
A springer spaniel!
一只激飞狗！
If you wish good advice, consult an old man.
如要忠告向老人请教。
I hope not. She says she's got a headache and a cough. Perhaps she's caught a cold.
我也但愿如此。她说有点头痛，还咳嗽。也许是感冒了。