| 释义 |
essential/iˈsenʃ(ə)l/ adj. & n.●adj. 1 absolutely necessary; indispensable 必需的；必备的，不可缺少的，绝对需要的 2 fundamental, basic 基本的；根本的，基础的 3 of or constituting the essence of a person or thing 精华的，精髓的 4 (of a disease) with no known external stimulus or cause; idiopathic (疾病)自发的；无外部起因的 ●n. (esp. in pl. 尤用复数) a basic or indispensable element or thing 必备品，(基本)必需品 □ essentiality /-ʃiˈæliti/ n.□ essentially adv.□ essentialness n.[Middle English from Late Latin essentialis (as ESSENCE)] |