" Blind leading the blind, " " by the skin of your teeth, " " fly in the ointment, " " writing is on the wall." The Bible.

“盲人引导盲人” 、“咬牙切齿” 、“美中不足”、“不祥之兆” 。 圣经。

Again, you tell me what the common origin is." Blind leading the blind, " " by the skin of your teeth, " " fly in the ointment, " " writing is on the wall." (Audience) The Bible.

你再告诉我共同的起源是什么。“盲人引导盲人”、“咬牙切齿”、“美中不足”、“不祥之兆”。 （观众）圣经。

Someone who is " blind" cannot see, so you would not want to have someone who is blind leading another person – helping another person who was blind, because neither of them would know where to go.

“瞎子” 看不见， 所以你不希望让瞎子带领另一个人——帮助另一个瞎子，因为他们都不知道该去哪里。