让我们挑战一些极限旅游。
比赛教我们挑战自我。
他向我们挑战，要我们再试试。
在移动世界，我们有设备要求我们挑战这些实践。
In the mobile world we have devices that require us to defy those practices.
陈家刚：相当于我们挑战技术的一个极限。
Chen Jiagang: Something like we pushed the envelope of technology.
所以取代之前一直等待别人给我们挑战的转态，你可以大胆做你自己。
这个过程强迫我们挑战自身的缺陷和不足，挑战我们过去因为愚蠢犯下的错误。
It forces us to confront our imperfections and inadequacies and the foolish choices we made in the past.
最近，memorex的广告也向我们挑战，能否区分爱拉·菲兹杰拉的实况演出和录音。
More recently, the famous Memorex ad challenged us to determine whether it was a live performance of Ella Fitzgerald or a recorded one.
环境的破坏是我们所面临的最严峻的挑战之一。
Destruction of the environment is one of the most serious challenges we face.
体育运动教会我们接受挑战，下决心面对困难。
Sports teach us to accept challenges and face difficulties with determination.
我想，如果我们不得不面对这样的挑战和困难，我们大多数人都会感到气馁。
I think most of us would be discouraged if we had to face challenges and difficulties like that.
我们可以给自己新的挑战，认识新的人，让我们的思想接触新的信息、爱好和技能。
We can give ourselves new challenges, meet new people, and expose our minds to new information, hobbies and skills.
我认为经济形势确实很困难，我们面临着巨大的挑战。
I think that it's true that the economy is difficult and there is a big challenge in front of us.
这是我们这个时代面临的重大挑战，为此可能需要“非理性”的回应。
This is a grand challenge for our age and it may require an "irrational" response.
我们拥有新的机遇，也面临新的挑战。
We are blessed with new opportunities and faced with new challenges.
澳大利亚作家安德鲁·马修斯告诉我们，实现梦想是人生最大的挑战。
Andrew Matthews, an Australian writer, tells us that making your dreams come true is life's biggest challenge.
我们当然面临着来自 DVD行业的严峻挑战。
We're certainly faced with the grave challenge from the DVD industry.
这样的浪费水平是个悲剧，如果想在可持续满足我们未来粮食需求的挑战中取得成功，就不能让它继续下去。
This level of wastage is a tragedy that cannot continue if we are to succeed in the challenge of sustainably meeting our future food demands.
澳大利亚作家安德鲁·马修斯写的《跟随你的心》告诉我们，实现梦想是人生最大的挑战。
Follow Your Heart by Australian writer Andrew Matthews tells us that making our dreams real is life's biggest challenge.
你觉得职位描述和我们的宣传会给你带来你想要的挑战吗？
You felt that the job description and our advertisement would offer you the kind of challenge you're looking for?
即使今天排放量开始减少，我们仍然面临着适应气候变化的挑战。
Even if emissions were to begin to decrease today, we would still face the challenge of adapting to climate change.
今天，我们似乎面临着能源、环境和医疗保健方面的挑战。
Today we face seeming challenges in energy, the environment, health care.
美国总统巴拉克·奥巴马上月在美国发展中心的一次演讲中宣称，经济不平等是“我们这个时代的决定性挑战”。
Economic inequality is the "defining challenge of our time", President Barack Obama declared in a speech last month to the Center for American Progress.
我将提出，我们在可持续性这方面所面临的问题和挑战。
I'll pose some of the questions and the challenges we are facing in the area of access in sustainability.
我们懂得，没有任何国家能够单独应对和把握21世纪的挑战与机遇——我们大家都必须承担责任，共同努力。
We know no nation can meet the challenges and seize the opportunities of the 21st century alone—all of us have to take responsibility and work together.
我们互相挑战做手枪（单腿下蹲）或是倒立。大多数时候我们不能，但这很有趣。
We challenge each other to do pistols (one-legged squats) or handstand pushups. Mostly we can't, but it's fun.
大多数讨论都集中在目前需要做什么，因为我们已从安全问题逐渐转到具有挑战性的经济问题上。
Most of the discussion was on what needed to be done now as we transitioned from the security issues to the challenging economic issues.
我们常常会遇到挑战，没有人会不受到它的影响。
Challenges are regular visitors in our life, and nobody is immune to them.
我们也知道，长时间没有变化或缺乏挑战会导致无聊，造成身体和心理上的疲惫。
We also know that a long time without change or challenge can lead to boredom, and physical and mental strain.
一开始，我以为挑战在于训练它坐下、跟在我们后面、安静地走在我们身边，而不是疯狂地追逐附近的兔子。
At first, I thought the challenge would be to train her to sit, to heel, to walk calmly beside us and not go wildly chasing the neighborhood rabbits.
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