1、turn around

(使)调转方向;(使)转向

Bud turned the truck around, and started back for Dalton Pond.

巴德把卡车掉头，开始返回多尔顿池。

He had reached over to turn round a bottle of champagne so that the label didn't show.

他伸手把香槟转了一下，这样它的商标就不会露出来。

(使)复苏;(使)好转

Turning the company around won't be easy.

盘活那家公司绝非易事。

In his long career at BP, Horton turned around two entire divisions.

霍顿在英国石油公司漫长的职业生涯中曾经让两个部门整体上起死回生。

改变(问题、句子或想法的)表达方式

Now turn the question around and start looking not for what you did wrong in the past, but for what you can do to make things better in the future.

现在换个角度考虑问题，开始不要去想你过去做错了什么，而考虑一下怎样才能日后做得更好。

It's an example of how you can turn around the sentence and create a whole new meaning.

那个例子告诉你如何改变一个句子使其表达出完全不一样的意思。

2、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。

（科学）原理，定律

These people lack all understanding of scientific principles.

这些人对科学原理一窍不通。

the principles of quantum theory.

量子论原理