Piston pump
[化] 活塞泵
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
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
She's not at home.
她现在不在家。
Content is happiness.
知足常乐。
The prisoner felt sorry for him, but there was nothing else he could do.
战俘为他感到惋惜，但却没有别的选择。