Rotary vane vacuum pump
[化] 回转叶片式真空泵
🧩 词语组成解析
n. 风向标, 风信旗, 变化不定的事物\\n[机] 轮叶, 叶
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
You did a good job.
你做得真棒！
My car looks so old and run-down compared to theirs! At least it has character.
我的汽车看起来要比他们的旧而老爷。但是至少有性格。
You should learn these words by heart.
你应该把这些词背熟。