C3631

The Cao brothers looked at each other, not knowing what to say.

"Little Ying, it's your dad and I who are doing this, so you don't have to worry about it. This is a man's business, you're just a girl, do your research well, maybe in the future your research will become a life-saving project for us." Cao Yongming said.

"Uncle, it's already so late, and you're still hiding it from me