Kupfersilumin
库普弗尔硅铝明合金
🗣️ 情景例句
Sorry, I couldn't help overhearing, did you mention something about...
对不起，我无意中听到你们的谈话，你们是不是提到...
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
We arrived in London this afternoon.
我们是今天下午到达伦敦的。