essential

柯林斯词典

1. ADJ Something that is essential is extremely important or absolutely necessary to a particular subject, situation, or activity. 至關重要的
It was absolutely essential to separate crops from the areas that animals used as pasture. 把莊稼與牲畜的放牧區分開至關重要。
As they must also sprint over short distances, speed is essential. 由於他們還必須疾速短跑，因此速度是至關重要的。
2. N-COUNT The essentials are the things that are absolutely necessary for the situation you are in or for the task you are doing. 必需品
The apartment contained the basic essentials for bachelor life. 這套公寓配有單身生活的基本必需品。
3. ADJ The essential aspects of something are its most basic or important aspects. 基本的; 重要的
Most authorities agree that play is an essential part of a child's development. 大多數權威人士認爲玩耍是孩子成長的一個重要部分。
4. N-PLURAL The essentials are the most important principles, ideas, or facts of a particular subject. 要素; 要點
...the essentials of everyday life, such as eating and exercise. …飲食、運動等日常生活要素。

The books on this list are essential reading for the course .
Fresh fruit and vegetables form an essential part of a healthy diet .
During the emergency , people stocked up on essential items like candles , medicines and tins of food .
It's essential that she has this medicine every day .
Computer literacy is becoming as essential as the ability to drive a car .