拼音 hēi bái bù fēn
注音 ㄏㄟ ㄅㄞˊ ㄅㄨˋ ㄈㄣ
是非、善恶分不清楚。如:「他好心帮你,你别黑白不分,见了人就没有好脸色。」近泾渭不分,善恶不分
英语 can't tell black from white (idiom); unable to distinguish wrong from right