4-f
n. [美國英語]；選征兵役制中不及格者免除兵役(者)(指身體、心理、品德等不適于服兵役)的分類
??? 情景例句
With a little help from the ASPCA,
可以請ASPCA幫忙，
Can I take you out to dinner? It'll be my treat.
我?guī)愠鋈コ燥埡脝幔窟@次我請客。
No, it's open. It closes at six.
不，還沒關(guān)。六點才關(guān)門。