Tempering sand
[机] 调质砂
🧩 词语组成解析
[医] 回火, 淬硬
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
No, not yet. What about you?
不， 还没有。你呢？
A good horse often needs a good spur.
好马常要好靴刺。
It will be out next month.
下个月即可推出。