Fluid sand
[机] 流砂
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
How are you?
你好吗？
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
Sure! Work must come first!
当然啦！工作必须先做嘛！