Subgroups
n. 副全宗；亚组, 子组（subgroup的复数形式）
🗣️ 情景例句
I'm thinking about it....
我正在考虑中……
Which one is more economical?
哪一个是比较经济的？
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。