noun🔗Share认真,诚恳,热忱。 The quality of being earnest; sincerity; seriousness."Her earnestness during the presentation convinced the boss to approve the new project. "她在报告时表现出的认真劲儿打动了老板,最终批准了新项目。characterqualityattitudemoralemotionbeingmindChat with AIVocabulary GamePractice Reading