essential的翻译：作为形容词，essential中文翻译为“本质的”、“必不可少的”、“完全必要的”、“基本的”、“根本的”；作为名词，essential中文翻译为“必不可少的东西”、“要点”、“要素”、“实质”。

1、作为形容词时，意为本质的;必不可少的;完全必要的;极其重要的;基本的;根本的。

例句：Money is not essential to happiness.

金钱对于幸福并非必不可少。

Even in small companies, computers are an essential tool.

即使在小公司里，计算机也是必不可少的工具。

The essential character of the town has been destroyed by the new road.

这个城镇的主要特色被这条新公路毁了。

Most authorities agree that play is an essential part of a child's development...

大多数权威人士都同意，玩耍在孩子成长过程中起着非常重要的作用。

It is essential to keep the two groups separate.

将这两组隔开是完全必要的。

Another thing is that I found out just how essential alcohol is to Chinese culture.

还有就是我发现，酒对于中国文化有着极其重要的意义。

2、作为名词时，意为必不可少的东西;必需品;要点;要素;实质。

例句：The studio had all the essentials like heating and running water.

工作室里备有基本设施，如暖气装置和自来水。

The flat contained the basic essentials for bachelor life.

那套公寓配有单身生活的基本必需品。

The flat contained the basic essentials for bachelor life.

那套公寓配有单身生活的基本必需品。

The information and advice are boiled down to bare essentials.

各种资料与建议缩短为极简单的要点。

A healthy banking system is an essential aspect of society.

一个健康的银行体系是组成社会的重要要素。

Thus it will has a essential effect to our stock market.

国证券市场必将产生实质性的影响。