Oscillating plunger pump
[化] 摆动活塞泵
🧩 词语组成解析
[计] 振荡的
plunger
[['plʌndʒə]]
n. 跳水者, 潜水者, 活塞\\n[电] 活柱
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
2,3,4 ... now switch. ... 2 3 4
……现在 左右交替……
He is a wise man who speaks little.
聪明的人话不多。
With the hand held high in the air,
把手高高举在空中握住绳子，