The assignment on physics is a real challenge.
物理作业是一个真正的挑战。
Designing an environmentally friendly airplane is a real challenge.
设计一架环保飞机是一个十足的挑战。
这对我是一个真正的挑战。
And I think it's a real challenge.
我认为这是一个真正的挑战。
So much for a real challenge... Die!
真正的挑战就是这么回事……死吧！
Learning English vocabulary is a real challenge.
学习英语词汇确实是一种挑战。
But replicating their success is a real challenge.
不过复制它们的成功是一项真正的挑战。
It's a real challenge, but it's something that is do-able.
这确实是一个挑战，但仍然有可能完成。
Exploring the outer space is a real challenge to mankind.
探索外层太空对人类是真正的挑战。
Creating this level of true immersion is a real challenge.
创造这个级别的真实体验确实是一个挑战。
The new life he has adapted to means a real challenge to him.
他所适应的新生活对他来说意味着挑战。
Choosing a gift for your family and friends can be a real challenge.
为自己家人和朋友挑礼物是很有挑战性的。
But we decided to focus on wine because that seemed like a real challenge.
但是我们决定对酒类下手，因为它看上去是一个真正的挑战。
That those who hard learned from us now excelled us was a real challenge.
向我们学的人反倒超过了我们，这确实对我们是一个促进。
It was a real challenge that those who had learned from us now excelled us.
过去向我们学习的人，现在反而超过了我们这对我们来说确实是个挑战。
The online courses have constituted a real challenge to the regular courses.
远程课程对常规课程已构成真正的挑战。
Keeping the team focused and motivated on longer engagements is a real challenge.
保持团队专注和在长期的项目中的积极性是真正的挑战。
Getting the kids off to school and you off to work in time can be a real challenge.
送孩子准时上学、自己再准时上班真不是一件容易的事。
In other words, it's a real challenge to physical strength as well as to willpower.
换句话说，这对身体力量和意志都是一项真实的挑战。
Those of us whose attention is easily diverted have a real challenge acquiring this skill.
对于我们这些注意力容易转向的人来说，要获得这样的技能是一个真正的挑战。
Poorly designed and implemented systems may be easy to write but they're a real challenge to support.
粗劣设计的并可执行的系统可能易于编写，但是要对它们提供支持确实是一个挑战。
Lucy: It was a real challenge speaking to such a big audience. I was scared but I felt good too.
露西：在这么多人面前讲话真的是一次挑战。我很害怕但感觉却很好。
As a composition it is coherent and complete, being a real challenge at the stage of realization.
作为一个组合物，它是连贯且完整的，是在实现阶段的一个真正挑战。
As a composition it is coherent and complete, being a real challenge at the stage of realization.
作为一个组合物，它是连贯且完整的，是在实现阶段的一个真正挑战。
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