不知死活 (bù zhī sǐ huó) | Meaning: to act recklessly (idiom) | Chinese Idiom with Pinyin & Origin

not knowing when to come or leave (idiom); with no sense of propriety不知进退bù zhī jìn tuì

lit. not knowing what's important (idiom); no appreciation of the gravity of things · naive · doesn't know who's who · no sense of priorities不知轻重bù zhī qīng zhòng

cavalier · offhand · reckless轻率qīng shuài

to act recklessly (idiom)

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