Machmeter
n. 马赫计
🗣️ 情景例句
That's not it.
不是这种事。
Where are you headed?
你要到哪里去？
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。