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
and where do they report?
他们去哪儿报到？
Which one is better?
哪一个是较好的？
I've heard so much about you.
久仰大名。