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
that does his major accounting work
承办他主要会计工作的那家公司
If you would have a thing well done, do it yourself.
如要是情做得好，你须亲自动手搞。
What does she have to do?
她得做什么？