也称“奢言”。不切实际的高谈阔论to talk in an exaggerated and unrealistic manner

• 他都不认你了，还奢谈什么赡养费！

  He doesn't even acknowledge you – how can you talk about support payments?

• 既然你去意已决，还奢谈什么。

  Since you've made up your mind to go, what's the point in talking further?