英譯：
the blind leading the blind
註：這成語通常位在 it is (a case of) 之後。
例句：
- John: Mike is helping me fill out my tax forms this year. (麥可今年要幫我填寫報稅表單)
Jane: Is he a tax expert? (他是稅務專家嗎?)
John: He read a book about income tax once. (他曾讀過一本所得稅方面的書)
Jane: Sounds to me like the blind leading the blind. (在我聽起來這好像問道於盲) - David offered to be my guide through Tokyo, but since he’d never been there before either, it was a case of the blind leading the blind. (大衛表示要當我到東京的導遊，但由於他以前也沒有去過東京，這是問道於盲，於事無補)
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