Gasmeter
气量计
🗣️ 情景例句
You have to ask for my father's permission.
你必须征得我父亲的同意。
Know something of everything and everything of something.
既要有一般常识，又要有专业知识。
The need to produce ever-increasing quantities of cheap food leads to a different kind of pollution.
日益增长的对廉价食物的需求导致了另一种形式的污染。