Piston plunger pump
[机] 柱状活塞泵
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
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
You don't seem very enthusiastic about his suggestion.
你似乎对于他的建议并不很感兴趣。
I'll need an economy ticket with an open return.
我要一张经济舱，回来时间不定的来回票。
In the back row.
教室后排。