Perlition
表面渗碳用液体渗碳剂
🗣️ 情景例句
You want a hint?
需要提示吗？
We hope that the next negotiation will be the last one before signing the contract.
我们希望下一交谈判将是签订合同前的最后一轮谈判。
There were six million visitors in all,
参观的人数总共是600万。