Dimethylation
二甲基化作用, 二甲基取代作用
🗣️ 情景例句
They took every last dime.
他们拿走了所有的钱。
I'm the darkest man in my team.
我是我的那一队伍中最黑的男人。
A detective recently watched a well-dressed woman who always went into a large store on Monday mornings.
一名侦探最近注意上了一位穿着讲究的妇女，她总是在星期一上午进入一家大商场。