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
and Mom has all these committees she's on.
妈妈又有那么多的小组会议要开。
Is that a book?
那是一本书吗？
He is therefore forgiven if late for a dinner party.
因此，他要是赴宴迟到了会得到谅解。