洋洋得意

I reckon she has good reason to feel smug.

我认得意必有其缘故。

She gloated over her son’s achievements.

对儿子的成就感到得意。

Which the elation of liberty and the pain of exclusion were indistinguishably mingled.

既由而得意，又因未能加而不胜伤心，两种感情难分难解地纠集在一起。