But two other articles of faith are being challenged .

但另外两种信念也正受到挑战。

But other top executives strongly challenged the idea .

但是其它高管都强烈的质疑了这个想法。

The competition challenged students to propose a concept of a small home that produces enough sustainable energy to equal out energy consumption .

这次比赛要求学生们提交一个可以生产足够的与消耗量相当的可持续能源的小家园概念。

Defense attorneys have repeatedly challenged his account .

辩护律师多次对他的陈述表示怀疑。

If american dominance is challenged , it will be at sea .

一旦这一主导地位受到威胁，美国将会茫然无措。