Word保证bǎozhèngMeaningto guarantee; promisePart of speechverbPronunciationCourseHardcore ChineseLessonGoing on a bicycle ride with friendsUsages of bǎozhèng我wǒ 保证bǎozhèng 明天míngtiān 来lái。wǒ bǎozhèng míngtiān lái.I promise I will come tomorrow.