Sand filtration
[医] 沙滤
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
n. 过滤\\n[化] 过滤
🗣️ 情景例句
They're in my bag.
在我袋子 。
That important man is very unassuming in his manner.
那个要人彬彬有礼，是一位毫不摆架子的人。
but he has never managed to get enough money to have the church clock repaired.
但始终未能筹足资金把教堂的钟修好。