成人午夜视频一区二区无码,无码加勒比一区二区三区四区,亚洲无线中文字幕乱码,国产精品人妻系列21p

adj (1) 重(必)要的，緊要的 (of the greatest importance; absolutely necessary) [A(to/for)] [尤作 pred]：an～part of sth 必要的部分;Food is～to life. 食物對(duì)于生命是必不可少的。Books are～to a teacher. 書對(duì)于教師來說是必不可少的。Strong boots are～for mountaineering. 登山必須有結(jié)實(shí)的靴子。Respecting everyone's opinion is～in friendship. 尊重每個(gè)人的觀點(diǎn)對(duì)于友誼是很必要的。The～thing to do is ... 重要的是 ……; It is～to eat regularly for good health/that you practice if you want to be really good. 要想身體好，按時(shí)吃飯尤為重要/如果你想真正做好，多練習(xí)是至關(guān)重要的?！纪?necessary，needed，vital; 〖反〗 unimportant，incidental，unnecessary，secondary，minor，trivial;

(2) 本(實(shí))質(zhì)的，基本的 (of the basic or inner nature of something) [作attrib]：the～theme of a play/purpose of a vocation 劇本的主題/假期的根本目的; the～difference between sth 某些東西之間的本質(zhì)區(qū)別; Her most ～quality is kindness. 她最本質(zhì)的品德是善良?！纪?basic，fundamental，main，key，principal，leading，important，inherent;〖反〗 unimportant，incidental，immaterial，secondary;

n 要點(diǎn)(素)，精華(髓)，本(實(shí))質(zhì) (thing that is necessary or very important) [C，常pl]：the～of English grammar 英語語法的基本要素; grasp/outline the～s 抓住/概括要旨;～of life 生活本質(zhì); learn the～of sth 學(xué)習(xí)某事的要點(diǎn); Is a computer an～? 計(jì)算機(jī)是必需品嗎? Take along only ～s when travelling. 旅行時(shí)只帶必要的用品?！纪絩equisite，necessity，basics， fundamentals， principles; 〖反〗 accessory，extra，option;

←′essence n 本(實(shí))質(zhì);

→e′ssentially adv 實(shí)質(zhì)地，基本地;e′ssentialism n 基本教育論;?essenti′ality n 本(實(shí))質(zhì)(性);e′ssentialize v 講明 …… 的本質(zhì)