判若黑白

词语解释

判若黑白[ pàn ruò hēi bái ]

⒈  像黑的与白的那样明显区分。形容界限分明。

例夫文之高下雅俗，判若黑白。——清·方望溪《书祭裴太常文后》

英the difference is as between the black and the white;