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
A gift from me.
这是我的一件礼物。
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
'Well, I'd prefer to stay here,' I said.
“可我更愿意呆在这儿，”我说，