Polysilicate
聚硅酸盐
🗣️ 情景例句
Well, OK. See if they have a room.
那， 好吧， 看看他们是否还有房间。
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
Why are there three prices quoted for this part?
这种零件为什么有三种不同的报价？