Nonexposed
未接触的, 未暴露的
🗣️ 情景例句
My mother is a housewife and my father is retired.
我妈妈是家庭妇女，我爸爸退休了。
Martha will expect you to come by at six o'clock for dinner.
玛莎以为你在六点以前会来吃晚饭。
To serve the people well, I study hard.
为了更好的服务于人民，我好好学习。