The lights are on but nobody's home – used to describe a stupid person.

灯亮着却没人在家㥨——用于描述很愚蠢的人。

The lights are on but nobody's home - used to describe a stupid person.

灯亮着却没人在家——用于描述很愚蠢的人。

Brian never pays attention or thinks things through. It's like the lights are on, but nobody's home.

布莱恩从不用心或是把事情想清楚。就像是空屋点灯那样心不在焉。