Logic dictates that our ancestors could not have held a yearly festival until they figured what a year was.
依照逻辑推论，我们的祖先在弄清1年是什么意思之前，不可能举行过每年一度的节庆。
Our ancestors merely made use of their hands to change nature.
我们的祖先只凭双手改造自然。
If we look back at our ancestors, we'll see that they had a lot more hair on their bodies than we do now.
如果我们回过头看看我们的祖先，我们会发现他们身上的毛发比我们现在多得多。
The ape shoulder is good for hanging from a tree, but when our ancestors started walking on two legs, the shoulder started to change.
猿猴的肩膀有利于其在吊在树上，但是当我们的祖先开始以两条腿走路以后，猿猴的肩膀也开始发生变化。
Our ancestors adapted to the universal but irregular global warming since the end of the last great Ice Age, around 10,000 years ago, with dazzling opportunism.
我们的祖先以令人眼花缭乱的机会主义，适应了自上一个大冰期结束后，约1万年前普遍但不规则的全球变暖。
I bet our ancestors returned home from hunting wild animals and gathering nuts, and complained about how little time they had to paint battle scenes on their cave walls.
我敢打赌，我们的祖先打猎和采集坚果回来后，会抱怨他们很少有时间在岩壁上描绘战斗场面。
When our ancestors drew humans, they would often draw them as stick figures, but if they drew a face, then the eyes were almost always very prominent—very open and wide.
我们的祖先在描绘人类形象时，通常会把人画成粗线条的简笔画；但假如要画人的面部，几乎所有的眼睛都是非常突出的，睁得又大又圆。
Our ancestors' decisions have influenced our own life.
我们祖先的决定影响了我们的生活。
This may develop from our ancestors' need to run on the wet ground.
这可能源于我们的祖先需要在潮湿的地面奔跑。
Our ancestors might not play with marbles, but wrinkled fingers could make it easier for them to climb around in the wet forests and catch fish from rivers.
我们的祖先可能不会玩弹珠，但起皱的手指可以让他们更容易在潮湿的森林里爬来爬去和从河里抓鱼。
If we can rediscover the values of hands-on experience and craftwork, Smith says, we can marry the best of our modern insights with the handiness of our ancestors.
史密斯表示，如果我们能重新发现亲手实践和手工劳作的价值，我们就能将我们现代的洞察力与我们祖先的心灵手巧结合起来。
For most of our evolutionary history, our ancestors lived in tribes.
在人类进化史的绝大多数时间里，我们的祖先都生活在部落里。
Such presentations tell us more about contemporary perceptions of the world than about our ancestors.
这样的介绍更能告诉我们当代人们对世界的看法，而不是祖先的看法。
Being the particular icons of Chinese culture, traditional festivals are also precious intangible cultural heritage that we have carried down from our ancestors.
作为中国文化的特有标志，传统节日也是我们从祖先那里继承下来的宝贵的非物质文化遗产。
Our ancestors enjoyed a cleaner world.
我们的祖先享有比较干净的世界。
We love to think about us and about our ancestors.
我们喜欢思考我们自己以及我们的祖先。
What did our ancestors do to make life meaningful?
为了使人生充满意义，我们的祖先做了些什么？
Shea thinks our ancestors threw rocks pretty well.
谢伊认为我们的祖先投掷石块的本领相当不错。
And those people - and they alone - are our ancestors.
这些人——也只有这些人——成为了我们的祖先。
The old photographs above the bed are of our ancestors.
床头上方的是我们的祖先老照片。
Of what interest are the ideals and beliefs of our ancestors?
令我感兴趣的是我们祖先的理想与信仰。
These findings hint at what happened to FOXP2 in our ancestors.
这些发现都在暗示我们祖先身上FOXP2基因所发生的变化。
So an aversion to bitter may have helped our ancestors survive.
所以对苦的厌恶还可能挽救过我们祖先的生命呢。
"Our ancestors respected each other," she says. "They looked after kids."
她说“我们的祖先相互尊重，他们照顾孩子。”
Perhaps our ancestors did the same, boosting their brainpower with veggies.
也许我们祖先就是这样做的，通过吃蔬菜来促进智力的发育。
Our ancestors conducted friendly exchanges through the Silk Road long time ago.
很久以前，我们的祖先就通过丝绸之路进行了友好交往。
Hunting and gathering resources consumed most of our ancestors' spare time.
搜寻和收集资源占用了人们的大部分空闲时间。
Hunting and gathering resources consumed most of our ancestors' spare time.
搜寻和收集资源占用了人们的大部分空闲时间。
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