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
You've come up with a good idea.
你想出来的主意好极了。
I doubt it.
我表示怀疑。
'Mr. Lane was defeated in the elections.
“莱恩先生在大选中被击败了，