Acetylation
乙酰化作用
🗣️ 情景例句
the New York City Ballet, the New York Philharmonic.
纽约市芭蕾舞团， 纽约爱乐的大本营。
I can come any time except Sunday.
除星期天外我都能来。
One day, the man downstairs went to talk to the man. He went upstairs and knocked the door.
一天，楼下人去找楼上人谈谈。 他上楼敲门。