Plunger pump
[化] 活柱泵
🧩 词语组成解析
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
Let's go to the fraternity party.
咱们去兄弟会吧。
Poverty on an old man's back is a heavy burden.
老而贫穷，负担沈重。
Excuse me. Is there a bookshop near here?
请问，附近有书店吗？