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
Fine. We were just wondering about this trunk.
好啦。我们正纳闷这只大衣箱呢。
That house is for sale. It has central heating.
此房出售，房子里有供暖设备。
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。