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
to do things together more--you and I.
也需要多在一起工作， 你和我。
Friendship cannot stand always on one side.
来而不往非礼也。
There being no one to help me, I had to do it all alone.
因为没有人帮助我，我不得不独立完成这项工 作。