Subpopulations
n. 亚种群（subpopulation复数）
🗣️ 情景例句
they insisted that I stay.
他们坚持要我留下来。
I meet the boy whose aunt is a typist.
我遇到那个男孩的姑妈是打字员。
Now let's go downstairs and have a cup of tea.'
来，咱们下楼去喝杯茶吧。”