Sulphurizing
渗硫
🗣️ 情景例句
If you had your choice of all the places in the world.
假如你可以选择世界上的任何地方。
I have so much to do after I retire.
我在退休后有许多事要做。
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？