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
The welcome sign is up:
欢迎的标语已经弄好了：
Isn't your wife's name Ethel?
尊夫人的名字是不是叫艾雪儿？
You'd better check with the shipper.
你最好向货运公司查查看。