Reversing pump
[化] 换向泵
🧩 词语组成解析
a. 回动的\\n[化] 换向
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
of forty-three years of on-the-job training.
关于我四十三年的工作经历。
You can't eat your cake and have it.
不能既要吃饼，又要把饼保存。
The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化，互相之间不停地相互吸引或相互排斥。