Sand pump
[化] 砂泵
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
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
What currency do they use in U.S.A.?
在美国人们用什么货币？
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
They put the food in paper bags, and take it home, or to their work place.
人们把这些食品装进纸袋，然后带回家或工作地点。