Filler sand
[机] 填砂, 背砂
🧩 词语组成解析
filler
['filə]
n. 填装物，填塞物;填装者，填注者;（杂志等的）补白;（报纸等的）补白;
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
Davis Aerobics Center for Good Health.
Davis有氧运动健身中心。
Just to be on the safe side.
为了安全起见。
The aircraft was able to fly over the endless white plains without difficulty.
飞机可以毫无困难地飞过这片茫茫无际的白色原野！