新视野大学英语词汇讲解第754期:principle

2012-12-14 15:10:22　

principle

n. a basic truth, law, or theory
原则, 原理
It is a principle of mine to help people when I can.
我的一个原则是尽可能地给人以帮助。
A bicycle and a motorcycle are built on the same principle, though they use different types of power.
虽然自行车和摩托车使用的动力不同,但它们的构造原理是相同的。