Piston plunger pump
[機(jī)] 柱狀活塞泵
?? 詞語(yǔ)組成解析
piston
['p?st?n]
n. <機(jī)>活塞;
plunger
[['pl?nd??]]
n. 跳水者, 潛水者, 活塞\\n[電] 活柱
pump
[p?mp]
n. 抽水機(jī);打氣筒;泵;輕軟舞鞋;
v. 用泵輸送 ;涌出;急速搖晃;盤問(wèn);
??? 情景例句
That's great.
真棒！
Inside the packet is some money.
小紅包里裝著些錢。
What are you doing?
你在干什么？