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
With a little help from the ASPCA,
可以请ASPCA帮忙，
Can I take you out to dinner? It'll be my treat.
我带你出去吃饭好吗？这次我请客。
No, it's open. It closes at six.
不，还没关。六点才关门。