DARPA制定了一项计划，以确保城市挑战赛不会陷入尴尬。
DARPA has a plan to make sure the Urban Challenge does not end in embarrassment.
有着很多迫切的城市挑战，各国只把废水再利用看作是额外的负担，没有直接或立即价值。
With so many pressing urban challenges, they see wastewater reuse as an added burden with no direct or immediate value.
因此，在明年11月举行的比赛被称为“城市挑战赛(urban Challenge)”。
So next year's event, to be held in November, will be called the Urban Challenge.
如果说，沙漠赛意味着“走，一直走（goand go）”之时，城市挑战赛则属于“走走停停（stop and go）”，CMU的著名机器人专家威廉·惠特克（William “Red” Whittaker）这样说。
Whereas the desert race was “go and go”, the Urban Challenge will be “stop and go”, says William “Red” Whittaker, a renowned roboticist at CMU.
托布将R2视作一次概念验证，如同其公司的机器人雪佛兰TahoeBoss所证明的一样，2007年Tahoe Boss赢得了美国国防部高级研究计划局（DARPA）举办的城市挑战赛（Urban Challenge）。
Taub considers Robonaut2 a concept demonstration, analogous to what the company proved when its robotic Chevy Tahoe, Boss, won the DARPA Urban Challenge in 2007.
国家植树节基金会向许多城市发起挑战，要求它们通过种植和保护更多的树木来赢得那面“美国树城”的旗帜。
The National Arbor Day Foundation has challenged many cities to earn its "Tree City USA" flag by planting and protecting more trees.
虽然大城市吸引了越来越多的人，但也带来了许多挑战，如交通堵塞和污染问题。
While big cities are attracting more and more people, they also bring many challenges, such as traffic jam and pollution.
城市居民继续面临健康危害和新的卫生挑战。
City dwellers continue to face health hazards and new health challenges have emerged.
城市人口在二十一世纪持续激增似乎已成定局，这给科学家们带来了更多的挑战和机遇。
The explosion in urban population looks set to continue through the twenty-first century, presenting challenges and opportunities for scientists.
为应对挑战，城市可以采取什么措施？
庭院和城市公园面临严峻的挑战，像伤害鸟儿的猫。
Yards and urban parks do present harsh challenges, such as bird-unfriendly cats.
本论坛的目的是让大家开始考虑怎样应对这种城市增长问题，并把挑战变成机遇。
The goal of the forum is to get people brainstorming about how to manage this kind of urban growth and turn challenges into opportunities.
应对气候变化和能源安全的双重挑战，也有助于使该地区快速扩张的城市更适宜居住。
Addressing the twin challenges of climate change and energy security will also help make the region's rapidly growing cities more livable.
未来将带来很多变化，有顺应能力的城市将能够更好地应对未来的挑战。
The future will bring many changes, and cities that are resilient will be able to respond better to future challenges.
一个日益凸显的新挑战是新出现的城市贫困，尽管农村的贫困不断减少。
An emerging challenge is new urban poverty, even as poverty is falling country wide.
城市化的加速带来了诸多挑战，也引起我们对诸多问题的高度关注：越来越多的贫民窟的出现、气候变暖引发的种种威胁以及严重的水土流失现象。
The advent of Homo urbanus brings many challenges that require our urgent attention, including the sustained growth of slums, the threats posed by climate change and the lack of security of tenure.
(假设有其他的城市效仿他们的例子)但他们知道，算出他们的政策能够影响幸福指数多少，这是个挑战。
But they acknowledge that figuring out how their policies affect that index will be a challenge.
Neuwirth说，我们的挑战，并不是去终结贫困或控制人口，而是参与并授权给这些“明日的城市”的居民们。
Our challenge, Neuwirth says, isn't to end poverty or control populations, but to engage and empower the residents in these "cities of tomorrow."
面对城市卫生挑战已有根治办法。
Solutions exist to tackle the root causes of urban health challenges.
全球各地的国家和地区都面临城市化的挑战。
Countries and regions all over the world face the challenge of urbanization.
可以肯定的是，带着昂贵的产品在小城市冒险极富挑战性。
To be sure, bringing expensive products and venturing into small cities comes with its challenges.
DARPA挑战赛的经验表明解决城市中道路路口和交通队列的问题已经成为可能，尤其是在当前，机器视觉系统日趋完善。
The experience of the DARPA challenge has shown that dealing with road junctions and traffic queues in cities is becoming possible too, especially with advances in machine vision.
改善城市交通部门的协调和管理问题是中国各个城市面临的一个挑战。
Inadequate urban transport sector coordination and management is one of the major challenges facing all Chinese cities.
应对这些挑战所取得的进展将从难民比例下降中体现出来，目前难民占城市居住人口的70%。
Progress in meeting these challenges would be shown by a fall in the proportion of slum-dwellers, who currently account for 70% of urban inhabitants.
城市化形成挑战有若干原因。
另外，一座新城市和一份新工作就意味着新的挑战。
Also, a new town and a new job mean a new adventure to embark on.
浦东从一个寸草不生的地方，变成一个未来派的城市，充满了各种富有挑战性的建筑。
Pudong has changed from Padi fields and empty barren land, to the futuristic city filled with buildings that are architecturally challenging.
浦东从一个寸草不生的地方，变成一个未来派的城市，充满了各种富有挑战性的建筑。
Pudong has changed from Padi fields and empty barren land, to the futuristic city filled with buildings that are architecturally challenging.
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