Acetylation
乙酰化作用
🗣️ 情景例句
He was a dull man and you had to explain things very slowly to him.
他脑筋迟钝，你必须慢慢地给他解释事情。
Who's the second?
下一位是谁？
It would be a waste of money to buy the IBM PC586.
买IBM586就浪费钱了。