Coarse vacuum pump
[化] 低真空泵
🧩 词语组成解析
coarse
[kɔrs]
adj. 粗鄙的;粗糙的;粗野的;粗制滥造的;
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
It's not fair, Richard. I'm not even ready.
这样不公平， Richard。我甚至一点准备都没有。
Do I have to reserve a seat?
我一定要预订座位吗？
Can you ring up the bus company?
你能给汽车公司打个电话吗？