Hyvac pump
[化] 海瓦克真空泵
🧩 词语组成解析
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
Can you arrange an interview for tomorrow?
你可以安排在明天面谈吗？
One butcher does not fear many sheep.
屠夫不怕羊多。
We regard them as unnecessary creatures that do more harm than good.
我们把昆虫当作害多益少的无用东西。