Read Edit View history 必要性 bìyàoxìng necessity Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 必要性 · bìyàoxìng · necessity 2026/03/04 必要性 bìyàoxìng necessity necessity 我们讨论了这项改革的必要性。 noun created sense Mar 4, 2026, 02:25 AM