Subpopulation
n. (从其他人口分出或构成总人口的)分组人口
🗣️ 情景例句
You don't recognize me, do you?
你不认识我了， 是吗？
Business may be troublesome,but idleness is pernicious.
事业虽扰人，懒惰害更大。
Did you serve this gentleman half an hour ago, Caroline? He says he's the man who bought these books.
卡罗琳，半小时前你接待过这位先生吗？他说他就是买这两本书的人。