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
It certainly is. The sun is shining but there's pleasant breeze. It's lovely.
的确不错。阳光明媚，和风宜人。太舒心了。
what's his native language?
他的母语是什么？
You'd better take a hat.
你最好戴上帽子。