He's in bliss that he's won the Nobel Prize.

他非常高兴, 因为获得了诺贝尔奖。

It's sheer bliss to be able to spend the day in bed.

都可以躺在床真是幸福。

Some doctors believe ignorance is bliss and don’t give their patients all the facts.

有些为不知道是好事，因此不向病人透露全部病情。