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
Payments over thirty years?
三十年分期付款吗？
They're calling your flight now.You barely have time to make it.
他们正在定航班。你刚刚有时间做。
It took years of hard work to speak good English.
讲一口流利的英语需要多年的刻苦操练。