That doesn't follow. 那说不通.
It's absurd. 这荒诞不经. It's illogical.这违反逻辑.
I don't follow the logic of this. 我听不出所以然来. I see no point in washing the car twice. 我看不出车子洗两次有什么道理.
It's unlikely. 没这可能. His behavior defies logic. 他的行为有悖情理.
That doesn't mean shit to me. 那对我来说没个屁道理
