1、principle

道德原则；行为准则；操守

Buck never allowed himself to be bullied into doing anything that went against his principles.

巴克从来不会因为受到威胁而做违背自己原则的事情。

moral principles.

道德准则

法则；原则；原理

a violation of the basic principles of Marxism.

违背马克思主义的基本原则

The doctrine was based on three fundamental principles.

这个学说建立在三条基本原理之上。

按照原则；根据信念

He would vote against it on principle.

他会根据原则投反对票。

His father, on principle, did not like to hear requests for money.

从原则上来说，他父亲不喜欢别人借钱。

2、present

现在的；目前的

He has brought much of the present crisis on himself.

目前的大部分危机都是他自己引起的。

the government's present economic difficulties.

政府当前的经济难题

现在；目前；现状

his struggle to reconcile the past with the present.

他为协调过去和现在所付出的努力。

continuing right up to the present.

一直持续到现在

机不可失，失不再来；就在当下

Don't wait until New Year to resolve to organise your life. There's no time like the present.

不要等到新年才下决心规划生活。要把握当下。