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
Please keep off the grass.
请勿践踏草地。
It is better to do well than to say well.
理论好不如实际好。
They're both fine,too. What about your family?
他们也都很好。你的家人好吗？