Tingitamine
氨基嘧啶丙氨酸
🗣️ 情景例句
Merry Christmas, Carl and David!
卡尔，大卫，圣诞快乐！
I was writing some letters to friends of mine.
我在写一些信给我的朋友。
This letter's full of mistakes. I want you to type it again.
这封信里错误百出。我要你重打一遍。