4-f
n. [美国英语]；选征兵役制中不及格者免除兵役(者)(指身体、心理、品德等不适于服兵役)的分类
🗣️ 情景例句
Yes. I would like an application.
是的，我想要一份申请表。
You should be punctual for appointments.
你应该准时赴约。
We also want to teach all the children to perform.
我们还想教会所有的儿童演奏。