Reciprocating piston pump
[化] 往复式活塞泵
🧩 词语组成解析
[医] 交互的, 往复的
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
We're lost, can you help us figure out where we are?
我们迷路了，你能告诉我们现在我们在哪儿吗？
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
This one is 3 yuan. That's dear.
这支笔三块钱，太贵了。