Plzj
[化] 掺镧锆钛酸铅
🗣️ 情景例句
Good afternoon, sir.
下午好。
Would you tell her Tom Gray Called?
请你告诉她汤姆i格雷来过电话，好吗？
We'd like to clear up some points connected with the technical part of the contract.
我们希望搞清楚有关合同中技术方面的几个问题。