adjective [原级] 最重要的，基本的；最简单的，初级的；（产品和服务）必需的；（化）碱性的；含碱的
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. 基本必需的
noun [抽象名词] 基本要素，基本原则
Water is a basic necessity of life. 水是一种基本生活必需品。
- basic 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 19 The stuff of dreams
- Lesson21 Williams S. Hart and the early 'Western' film
- Lesson 30 Exploring the sea-floor
- Lesson 40 Waves
- 网友用 “Basic” 造句精选
- ...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。
- 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。
- ...shortages of even the most basic foodstuffs. …甚至最基本食品的短缺。
- There are three basic types of tea. 有3种主要的茶。
- 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。
- ...the basic skills of reading, writing and communicating. …阅读、写作和交际等基本技巧。
- 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。
- 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。