basic

1. ADJ You use basic to describe things, activities, and principles that are very important or necessary, and on which others depend. 基本的

...the basic skills of reading, writing and communicating. …阅读、写作和交际等基本技巧。

Access to justice is a basic right. 享有公正是一种基本权利。

2. ADJ Basic goods and services are very simple ones which every human being needs. You can also refer to people's basic needs for such goods and services. 基本必需的

...shortages of even the most basic foodstuffs. …甚至最基本食品的短缺。

Hospitals lack even basic drugs for surgical operations. 医院甚至缺乏外科手术的基本必需的药品。

3. ADJ If one thing is basic to another, it is absolutely necessary to it, and the second thing cannot exist, succeed, or be imagined without it. 必不可少的[v-link ADJ 'to' n]

...an oily liquid, basic to the manufacture of a host of other chemical substances. …生产许多其它化学材料所必不可少的一种油状液体。

4. ADJ You can use basic to emphasize that you are referring to what you consider to be the most important aspect of a situation, and that you are not concerned with less important details. 主要的[ADJ n] [强调]

There are three basic types of tea. 有3种主要的茶。

The basic design changed little from that patented by Edison more than 100 years ago. 这个主要设计与100多年前爱迪生取得专利的设计相比没什么变化。

5. ADJ You can use basic to describe something that is very simple in style and has only the most necessary features, without any luxuries. 简单的

We provide 2-person tents and basic cooking and camping equipment. 我们提供双人帐篷以及简单的烹饪和露营设备。

6. ADJ The basic rate of income tax is the lowest or most common rate, which applies to people who earn average incomes. (所得税) 最低标准额的[ADJ n]

All this is to be done without big increases in the basic level of taxation. 所有这一切将在没有大幅度提高最低所得税标准的情况下进行。