Sliding-vane vacuum pump
[化] 滑板式真空泵
🧩 词语组成解析
a. 滑行的, 变化的\\n[机] 滑动
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
Could I?
我可以用吗？
Don't take any notice of what he says-he's pulling your leg.
别理睬他，他在跟你开玩笑。
This in turn had an effect on the food supply for wolves.
这样又影响了狼的食物供应。