a basic idea or rule that explains or controls how something happens or works

the principles of the criminal justice system 刑事审判制度的原则

The country is run on socialist principles. 这个国家推行社会主义制度。

The machine works according to the principle of electromagnetic conduction. 这台机器根据电磁传导原理运行。

The organization works on the principle that all members have the same rights. 该组织的工作原则是所有的成员都享有同等的权利。

Synonyms: basicsessential foundation (BASIC FACT)fundamentalsthe rudiments

See also: first principles

If you agree with or believe something in principle, you agree with the idea in general, although you might not support it in reality or in every situation.

In principle I agree with the idea, but in practice it's not always possible. 我大体赞成这个想法，但实际上这并非总是可行。

They have approved the changes in principle. 他们基本上批准了这些变革。

We were willing in principle to offer her a room in our house.

The terms of the contract were agreed in principle last week.

In principle, ministers believe that a national ID card scheme would have major benefits.

a moral rule or standard of good behaviour

She doesn't have any principles. 她毫无道德可言。

He was a man of principle. 他是个有道德准则的人。

Anyway, I can't deceive him - it's against all my principles. 无论如何，我不能欺骗他——这有悖于我做人的原则。

I never gamble, as a matter of principle (= because I believe it is wrong). 我从不赌博，对我来说这是个原则问题。

She'd never ask to borrow money, on principle. 按照她的处事原则，她从不向人借钱。