Many people soothe their consciences by purchasing only free-range fowl and eggs, blissfully ignorant that "free range" has very little practical significance.

许多人只买自由放养的家禽和鸡蛋，以此来安抚自己的良心，幸福地忽视了“自由放养”几乎没有实际意义。

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We're blissfully happy.

我们非常幸福快乐。

《柯林斯英汉双解大词典》

At first, he was blissfully unaware of the conspiracy against him.

起初，他对反对自己的阴谋全不知情，还在优哉游哉。

《柯林斯英汉双解大词典》

Many Japanese investors blissfully ignored rising interest rates in the last two years of the 1980s.

FORBES: Bull Sessions

Mr Hoecker said most Germans were blissfully unaware of the English stereotype of them hogging loungers.

BBC: NEWS | Europe | German sun lounger issue settled

Since the migration will not make its way up here until autumn, it was blissfully empty of other travellers.

BBC: The Serengeti in the off-season