Variable(displacement)pump
[化] 变量泵
🗣️ 情景例句
If we hire you, how long will you stay with us?
你打算给我们工作多久？
So disgusting!
真恶心！
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡