principle
单词辨析：
指某事物所依据的思想或理论。
He just has the gift of gab, and in fact, knows nothing about the basic principles of business management.
他只不过是能说会道，其实，他根本就不懂什么是企业管理的基本原理。
The general principle is that all the students should be equally treated.
总的原则是，所有的学生都应该受到公平对待。
指某事物所依托的最重要的观念、规律等。
Please first read the introduction on the fundamentals of print production.
请首先阅读印刷生产基础导论。
Students who want to take part in this project should know the fundamentals of modern fluid mechanics.
想要参加这个项目的学生需要了解现代流体力学的基本原理。
指自然界或人类社会恒常发生的事或对此进行的描述。
What is your understanding of the law of supply and demand?
你是如何理解供求规律的？
Can you give me several examples to illustrate the law of gravity?
你能给我举几个说明万有引力定律的例子吗？
通常用于科技英语，多指可以得到证明的数学定理。
The Pythagorean theorem can be written in one short equation: a2 + b2 = c2.
毕达哥拉斯定理可以用一个简短的等式表示为：a2+b2=c2。
相关例句：
These people lack all understanding of scientific principles.
这些人对科学原理一窍不通。
If we cannot understand that there's an issue of principle here, then we have lost our way.
如果我们看不到这里的原则问题的话，那么我们已经迷失方向了。
The decision had been agreed in principle before today's meeting, but some controversy surrounded it
该决定在今天的会议之前就已达成原则上的共识，但围绕这一决定还存在一些争议。
Homeopathic treatment is based on the 'like cures like' principle.
顺势疗法是基于“以毒攻毒”的原理。
The Government appears to be applying the same principle
政府似乎是在运用相同的原则。
To learn a language we must follow the principle of gradual improvement.
学习语言必须遵循循序渐进的原则。