Dopt
二羟苯丙氨酸
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
If it is left too long, it begins to give off a bad smell.
假如把它放得太久了，它就会开始发臭。
What's the matter with you?
你怎么啦？