Piston pump
[化] 活塞泵
?? 詞語組成解析
piston
['p?st?n]
n. <機>活塞;
pump
[p?mp]
n. 抽水機;打氣筒;泵;輕軟舞鞋;
v. 用泵輸送 ;涌出;急速搖晃;盤問;
??? 情景例句
I'm sure there's one for you.
我相信會有你喜歡的。
Which would you rather do--go dancing or go to a play?
你將去跳舞還是去看戲？
A good knowledge of English will improve your chances of employment.
英語好將有助于增加你們的就業機會。