Copper smelting
[建] 炼铜
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
smelting
['smeltiŋ]
n. 熔炼;
v. 熔炼，提炼（矿石）( smelt的现在分词 );
🗣️ 情景例句
I'll be back with them.
我会带他们来。
You are very justified in your answer.
你的答辩使你的行为的正当性深受认可。
and the railway of the future may well be the 'hovertrain',
未来的火车或许能成为气垫火车，