Floor sand
[机] 地面砂, 背砂
🧩 词语组成解析
floor
[flɔr]
n. 地面，地板;楼层;底部;议员席;
vt. 铺地板;击败，打倒;
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
May I ask who's calling?
请问你是谁？
You have to be operated on.
你得做手术。
Fifteen policemen had to push very hard to get him off the main street.
15个警察不得不用很大的力气把它推离主要街道。