Wind turbines operate on a simple principle.

风力涡轮机的工作原理很简单。

youdao

But I want to emphasize that these reforms are rooted in a simple principle.

但是我要强调的是，这些变革都基于一个简单的准则。

youdao

Let me warn you that it may be a simple principle, but it is not always an easy one to apply.

请允许我提醒你，这也许是一个简单的原则，但又不总那么易于实施。

youdao

Instead,it will be based on a simple principle: whether a state is ready to do what works.

VOA: special.2009.07.30

Not on the basis of simple filling in ascending order, but a modified rate of filling as according to the Aufbau Principle.

并不是以简单的升值分布为基础，而是一个修改的填充方法,根据构造原理得到的填充法。

麻省理工公开课 - 固态化学导论课程节选

Republicans believe in a simple principle: No American should have to worry about losing their health coverage -- period.

CNN: Transcript of Gov. Jindal's GOP response to Obama speech

But a still stronger consideration is the importance of adhering to a simple principle, intelligible to the most untaught capacity.

FORBES: The 10 Minute Gold Standard: It's Much Easier Than You Think

In the meantime, a simple principle must be applied: Americans do not want to invest in terror, directly or indirectly.

CENTERFORSECURITYPOLICY: Terror Investments of the 50 States