这正是我想要知道的

That's what I want to find out 　　　 -- We have got a new dog, would you like to come around and play with him? -- Well, I don't know. Does he bite? -- That's what I want to find out. -- 我们又得到了一只新狗，你要过来和他玩玩吗？-- 哦， 我不知道。他咬人吗？-- 这正是我想要知道的。