essential

必须的；本质的adjadj

es ＋ sent(感觉) ＋ ial(…的) → 必要的感觉 → 必要的记忆

1 essential oil香精油，精油

2 essential condition必要条件

3 essential hypertension原发性高血压；特发性高血压

4 essential element必需元素

5 essential component主要部件；主要成分

6 essential difference本质区别

7 essential requirements基本要求；基本规范

8 essential amino acid必需氨基酸

9 essential nutrients基本营养物；必需营养素（essential nutrient的复数形式）

10 essential qualities固有性；本质（essential quality 的复数）

11 essential point本质点

12 essential information[计]基本信息

13 be essential for对…必不可少的

14 essential drugs基本药物

15 essential mineral知矿物；主成份矿物；基本矿物

16 essential fatty acid必需脂肪酸

17 essential parameter基本参数；本质参数

18 essential water组成水份

19 essential goods主要货物；必需品

1 真题例句...and essential work skill...CET42017.12阅读理解

2 真题例句...curiosity is essential to one's success...第二套CET42017.12阅读理解

3 真题例句...But crying as an expression of feeling is tmique to humans and has played an essential role in human evolution and the development of human cultures...第二套CET42014.6阅读理解

4 真题例句...Our ability to experience sympathy is essential to the development of civilization...第二套CET42014.6阅读理解

5 真题例句...tears have developed an essential role in social relationships...第二套CET42014.6阅读理解

6 真题例句...computer-aided design has become essential but in some ways has cheapened the design process...第三套CET42014.12阅读理解

7 真题例句...and yet strangely we worry when we see families investing so much in this supposedly essential good...第二套CET42013.12阅读理解

8 真题例句...It is essential that we act with integrity in order to build the kind of world in which we want to live...CET42011.12阅读理解

9 真题例句...Trust is essential in any important relationship...CET42011.12阅读理解

10 真题例句...It is essential to our well-being...CET42010.12阅读理解

11 真题例句...it is becoming essential to expand our under-standing of others and to reexamine some of our false assumptions...CET42009.6阅读理解

1 Window locks are fairly cheap and absolutely essential..窗锁相当便宜，绝对有必要安装。

2 Even in small companies, computers are an essential tool..即使在小公司里，计算机也是不可或缺的工具。

3 The essential difference between Sam and me was the fact that I took life seriously..我和萨姆的根本区别在于我是认真对待生活的。