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
But I'm still a little worried about you, Ellen.
但我还是有点牵挂着你， Ellen。
Every bird likes its own nest.
人爱其家。
for even though it was far too big for her needs, she persisted in living there long after her husband's death.
房子实在太大了，但在丈夫去世多年后，她仍然执意长年住在那儿。