Copper refining
[建] 銅(之)精煉
?? 詞語組成解析
copper
['kɑp?]
n. 銅;銅幣;紫銅色;警察;
adj. 銅制的;
vt. 鍍銅;
[計] 精煉, 提純\\n[化] 精煉; 精制; 提煉; 勻料; 勻漿
??? 情景例句
then there can't be a wedding.
婚禮就不能舉行了。
Let every man praise the bridge he goes over.
飲水思源。
I'll just play it by ear.
我到時隨機應變。