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Open the tool →孜孜不懈 (zī zī bù xiè) is a Chinese idiom (chengyu) meaning “to work tirelessly and diligently”.
孜孜不懈 is pronounced zī zī bù xiè in Mandarin Chinese.
Literally, 孜孜不懈 means “Assiduous and unflagging”. It is used to mean “to work tirelessly and diligently”.
勤勉努力,毫不懈怠。