Variable(displacement)pump
[化] 变量泵
🗣️ 情景例句
He was in trouble with the Customs.
他在海关那里有了麻烦。
Oh, really? I'm moving there too.
真的？我也会搬到那儿去。
The site chosen was an island at the entrance of New York Harbour.
场地选在了纽约港入口处的一个鸟上。