necessity是什么意思 n. 需要, 必需品, 必然[法] 必要性, 必然性, 必要 n. the condition of being essential or indispensablen. anything indispensable necessity的用法和例句： 1. No, that was more necessity than preference. 不 比起偏好 更应该说是必须吧 2. What I...
