Gasmetry
气体测量
🗣️ 情景例句
Would you mind not doing it?
你能不能别那么做？
He that has no children knows not what is love.
没有孩子的人，不懂什么叫爱。
As the parents had five children, life was a perpetual struggle against poverty.
家里已有5个孩子，全家人常年在贫困中挣扎。