Read Edit View history 夙夜匪懈 sùyèfěixiè working tirelessly Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 夙夜匪懈 · sùyèfěixiè · working tirelessly 2026/03/04 夙夜匪懈 sùyèfěixiè working tirelessly to work tirelessly from morning to night (idiom) 他为了按时完成这项工程，整月夙夜匪懈地工作。 created sense Mar 4, 2026, 02:25 AM