Acetylization
乙酰化作用
🗣️ 情景例句
How do you tie your bow tie?
你怎么打领结的？
On coming home, he switched on the television.
他一到家就打开了电视。
so she sat down and accepted a cup of very strong tea, while he telephoned the police.
于是坐了下来，喝了一杯浓茶。与此同时，看门的人给警察挂了电话。