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
I'd like you to meet my friend Malcolm Stewart.
我来为你介绍我的朋友Malcolm Stewart。
Love begets love.
爱爱相生。
Good afternoon, class! Who's on duty today?
同学们，下午好！今天谁值日？