Granosealing
磷酸盐处理, 磷化处理
🗣️ 情景例句
And now to see the end of the football game.
现在去看看足球赛的最后一段。
A crafty knave needs no broker.
狡猾的流氓，不需居间人。
That'll be very intersting. What cities are you going to visit?
那一定很有趣。你们打算参观哪些城市？