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
I don't know if I can get to sleep.
我不知道我能否睡得着。
I ache all over.
我浑身酸痛。
For years we've been demanding better housing and jobs.
多年来我们一直要求改善住房和工作条件。