Ethylating
乙基化(的)
🗣️ 情景例句
How fast can my mail be received?
我的信件多快会被收到？
Sure thing, boss. All in a day's work.
当然，头，这是家常便饭。
Just a minute. I'll see if I'm free. No, I'm not. I've already got something on that evening.
等一会。我看看是否有空。不，我没空。我那天晚上已经有了安排。