On the contrary, she gave a toss of her proud head, as though the matter were one in which she took small interest.

她把头摇了摇，似乎对于这件事并不怎样关心。

If I just said " Nice one" , that would sound like I don't care, I couldn't give a toss, and I... you go and get married, I don't care, right?

如果我说 Nice one，那听起来就像是我不在乎，我根本不在乎，而且我… … 你结你的婚，关我什么事。