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
How do you think about it?
你认为怎么样？
A good conscience is a continual feast.
白日不做亏心事，夜半敲门心不惊。
I'd like to take a boat on the River Nile.
我想乘船在尼罗河上游览。