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
Things have worked out badly.
情况进展得很不理想。
Please try to understand my position.
请了解我的立场。
Jim, could you help us, please?
吉姆，你能帮我们吗？