The American aerospace industry has been challenged by some stiff competition.
美国航空航天工业遭到了一些强劲竞争产品的挑战。
The idea of the "wall" has been challenged in several ways here.
在设计中，对“墙”的概念进行了别样的诠释。
It is not the first time he has been challenged for proclaiming technology's promise.
这已经不是第一次他由于技术承诺遭到挑战了。
The idea of class associated with power has been challenged by stratum and interest group.
与权力相联系的阶级概念受到阶层与利益团体概念的挑战；
The theory he established has never been challenged.
他所确立的理论从未受到过挑战。
The theory he established has never been challenged.
他所确立的理论从未受到过挑战。
应用推荐