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
There's nothing wrong with hard work.
刻苦没错。
We finally made it.
我们终于做到了！
Gandhi was thrown off a train and later a mail bus for insisting on travelling in the whites-only section.
旅行时，甘地因为坚持要坐白人座位，曾经先后两次被从一列火车与一辆邮车里扔出来。