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ADJ-GRADED
根本的；首要的；主要的
You use basic to describe things, activities, and principles that are very important or necessary, and on which others depend.
例句
One of the most basic requirements for any form of angling is a sharp hook.
不管以什么方式钓鱼，有一个锋利的鱼钩都是最基本的要求之一。
...the basic skills of reading, writing and communicating.
基本的读写和交流技巧
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ADJ-GRADED
基本的；起码的
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.
例句
...shortages of even the most basic foodstuffs...
最基本食物的短缺
Hospitals lack even basic drugs for surgical operations.
医院连最基本的外科手术药物也没有。
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ADJ-GRADED
基础的；必要的
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.
例句
...an oily liquid, basic to the manufacture of a host of other chemical substances...
制造许多其他化学物质所必需的油性液体
There are certain ethical principles that are basic to all the great religions.
某些道德原则在所有主要宗教中都是必不可少的。
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ADJ
根本的；最重要的
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.
例句
There are three basic types of tea...
茶主要分为三种。
The basic design changed little from that patented by Edison more than 100 years ago...
其本质设计和100多年前爱迪生的专利设计相差无几。
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ADJ-GRADED
最简单的；最基本的；最朴实的
You can use basic to describe something that is very simple in style and has only the most necessary features, without any luxuries.
例句
We provide 2-person tents and basic cooking and camping equipment.
我们提供双人帐篷和最基本的炊具以及露营装备。
...the extremely basic hotel room.
陈设极简单的旅馆房间
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ADJ
（价格、工资等）基本的
Basic is used to describe a price or someone's income when this does not include any additional amounts.
例句
...an increase of more than twenty per cent on the basic pay of a typical coalface worker...
普通采煤工人的底薪上浮超过20％
The basic retirement pension will go up by £7.95 a week...
基本退休金每周将增加7.95英镑。
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ADJ
（所得税率）最低标准的，基本的
The basic rate of income tax is the lowest or most common rate, which applies to people who earn average incomes.
例句
All this is to be done without big rises in the basic level of taxation.
所有这些都必须在未大幅度提高税收起征点的前提下完成。
...a basic-rate taxpayer.
适用最低标准税率的纳税人