Perlition
表面渗碳用液体渗碳剂
🗣️ 情景例句
Do we have to pre-book tours, or can we get them on site?
我们必须预定行程， 还是到那个地方再说？
How much ham did you want to buy?
你要买多少火腿？
Certainly.
当然可以。