Learn Chinese Idiom - 不分青红皂白

不分青红皂白

bù fēn qīnɡ hónɡ zào bái

not to distinguish black from white

For example:

随后他用一把手枪和一只自动武器不分青红皂白地朝人群射击，其中大多数是青少年，其暴行持续了一个多小时，奥斯陆特警队才抵达现场。

suí hòu tā yònɡ yì bǎ shou qiānɡ hé yì zhī zì dònɡ wǔ qì bù fēn qīnɡ hónɡ zào bái dì cháo rén qún shè jī ， qí zhōnɡ dà duō shù shì qīnɡ shào nián ， qí bào xínɡ chí xù le yí ɡè duō xiǎo shí ， ào sī lù tè jǐnɡ duì cái dǐ dá xiàn chǎnɡ 。

He then used two weapons, a handgun and an automatic weapon, to shoot indiscriminately at people─most of them teens─ for more than an hour before an Oslo SWAT team arrived at the scene.