人的一生就像在跷跷板上行走一样。
这里有时非常拥挤，沿着街道行走变得很难，穿过繁忙的市场更难。
It was sometimes so crowded that it was difficult to walk along the streets especially through busy markets.
当宇航员在太空行走时，他们会使用安全绳以保持他们与飞船的距离。
When on a spacewalk, astronauts use safety tethers to stay close to their spacecraft.
“即使在地球上，两足机器人也很难在崎岖不平的地面上行走。”这位官员说。
"It is still difficult for a biped robot to walk on a bumpy surface, even on Earth," the official said.
例如，许多婴儿都能非常熟练地爬行，但他们却决定尝试行走，因为当他们站直时，有更多的东西能看和做。
For instance, many babies are perfectly proficient crawlers, but they decide to try walking because there's more to see and do when they stand upright.
它们是行走的鲸鱼。
你是行走的牛津英语字典。
1993年，他需要做背部手术来减轻数十年行走带来的疼痛。
In 1993, he needed back surgery to relieve pain caused from decades of walking.
一条巨蟒，被认为是恐龙消失时在陆地上行走或至少滑行的顶级捕食者。
A titanic snake has been identified as the top predator to walk, or at least slither, the land when the dinosaurs disappeared.
我们站的这个地方，他们就在这里生活、行走、交谈、睡觉，并做着他们的工作。
Here, where we are standing, they lived, and walked, and talked, and slept, and carried on their business.
如果脑子比较小的古猿不是工具制造者，那他们直立行走的进化优势是什么？
If the small-brained australopithecines were not toolmakers, what evolutionary advantage did they gain by walking upright?
根据当地的民间传说，这些雕像会自己行走；而研究人员倾向于认为这些雕像是由他们的祖先用绳子和木头拖着走的。
Local folklore maintains that the statues walked, while researchers have tended to assume the ancestors dragged the statues somehow, using ropes and logs.
我的意思是，陆行鲸是一种哺乳动物，可以指明一个路上行走动物和水中游泳动物的清晰联系。
I mean, Ambulocetus is a mammal that shows a sort of bridge between walking on land and swimming.
同样一段距离，企鹅以其摇摆的方式来行走，所消耗掉的体能是其他同体型动物的两倍之多。
To waddle a given distance, penguins use twice as much energy as other creatures of the same size use to walk equally far.
数月的赤脚行走已使他的双脚变得坚硬。
她随意行走，享受着脚底接触着湿草的感觉。
She trod casually, enjoying the touch of the damp grass on her feet.
当宇航员在太空行走时，会穿太空服以保证自己的安全。
When astronauts go on spacewalks, they wear spacesuits to keep themselves safe.
另一款高速型的机器人是康奈尔大学的“游侠机器人”，它在今年打破了一项新的行走记录。
Another speedy bot is Cornell's Ranger Robot, which broke a new walking record this year.
太空行走的世界纪录由俄罗斯宇航员阿纳托利·索洛维耶夫保持。
The world record of spacewalks is held by Russian astronaut Anatoly Solovyev.
然而，理查德·朗的《行走的路线》并不比从滑铁卢坐20分钟火车更费力。
Richard Long's A Line Made By Walking, however, involved nothing more strenuous than a 20-minute train ride from Waterloo.
我曾在天上的神殿中行走，与圣祖说话。
I have walked in the courts of heaven, and held speech with the patriarchs.
凯威尔和施密特认为这表明了在两个非洲类人猿谱系中关节行走行为的独立进化。
Kivell and Schmitt think this suggests the independent evolution of knuckle-walking behavior in the two African ape lineages.
在太空行走这个主题上，观众的兴趣不同，能理解的复杂程度也不同。
On the subject of space walks, for example, audiences vary in their interests and how much complexity they can comprehend.
世界上第一个进行太空行走的人是来自俄罗斯的阿列克谢·列昂诺夫。
The first person to go on a spacewalk in the world was Alexei Leonov from Russia.
作为用两条腿直立行走的间接副产品，对手的过分关注帮助大多数文化产生了数字，但并非所有文化都是如此。
This manual fixation—an indirect by-product of walking upright on two legs—has helped yield numbers in most cultures, but not all.
当双子塔倒塌时，美国人暂停了行走的步伐。
当双子塔倒塌时，美国人暂停了行走的步伐。
直立行走使父亲可以用手收集食物并从远处把食物带给他的配偶。
Walking upright permitted the father to use his hands to gather food and carry it to his mate from a distance.
她是坐着轮椅来的，她由于转移性骨折而不能行走，戴着时尚的头巾。
She arrived in a wheelchair, unable to walk from metastatic fractures, wearing a stylish bandanna.
太空行走者迈克尔·古德身穿白色太空服，在空间站的背景下几乎看不到，参加STS-132任务的第三次也是最后一次的太空行走。
Spacewalker Michael Good, barely visible in his white spacesuit against the space station, participated in the STS-132 mission's third and final spacewalk.
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