必然 bìrán HSK3 inevitable Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: necessity All meanings 9 bìrán 9 inevitable 8necessity 1 1 sentence for 必然 (bìrán — necessity) 每月一次月经不适的必然性可能非常令人沮丧。 měiyuè yīcì yuèjīng bùshì de bìránxìng kěnéng fēicháng lìngrén jǔsàng. The inevitability of menstrual discomfort once every month can be very frustrating. Source: CCMatrix