Copper refining
[建] 铜(之)精炼
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
[计] 精炼, 提纯\\n[化] 精炼; 精制; 提炼; 匀料; 匀浆
🗣️ 情景例句
for a total of sixteen points.
她一共得十六分。
Before gold,even kings take off their hats.
在黄金面前，国王也要脱帽。
'It's working all right, but I'm afraid that at one o'clock it will strike thirteen times and there's nothing I can do about it.
“不错，钟能报时了，但是，恐怕每到1点钟，它总要敲13下，对此我已无能为力了。”