What could have caused the crows to caw?
什么能让乌鸦叫的？
We first discovered the crows on Friday morning.
我们第一次发现乌鸦是在星期五早上。
Significantly, the crows tended to use the sticks only to make their first contact with the object.
值得注意的是，乌鸦倾向于仅在初次与对象接触中使用小棍子。
Subsequently, the crows either ignored the object or dropped the tool and pecked at the object—which is very different from using the tool to get access to food.
随后，乌鸦要不就无视了该对象，要不就把工具丢到一边，然后用喙猛啄该对象——这和用工具觅食有很大不同。
So scientists want to find out much more about how the crows behave in their native habitat, and a team from Exeter and Oxford universities is carrying out research in New Caledonia.
因此，科学家们希望更多地了解乌鸦在它们的自然栖息地是如何活动的，而埃克塞特大学和牛津大学的一个研究小组正在新喀里多尼亚进行研究。
The crows caw when moon goes down.
月落乌啼。
The crows mow the yellow meadow.
乌鸦们修剪黄色的草地。
No more of the Crows Crying at Night.
再也听不到黑夜里乌鸦的啼鸣。
Call in the crows to fly over the plowed fields.
你们把乌鸦叫来，在犁过的田野上四处飘荡。
I've been biding time with the crows and sparrows.
我同乌鸦和麻雀一起打发时光。
I think the cars were the cause of the crows' cawing.
我想车是导致乌鸦哇哇的原因。
LICHTMAN: ...is that you have access to the crows in a way you didn't before.
我的意思是，我认为这是视频里最巧妙的事情之一。你能以一种以前不曾有的方式，观察乌鸦。
The farmers tried to fear the crows out of corn by planting several men of straw.
农民们树起了几个稻草人，试图把乌鸦从玉米地里吓跑。
In the gloaming, the crows flew in to gather for the night in a stand of bare oaks.
薄暮时分，鸦群飞向光秃秃的橡树枝条上过夜。
His research team, however, soon learned that the crows weren't easily fooled twice.
然而，他的研究团队很快发现乌鸦不会第二次再轻易上当。
You know, maybe the crows that can get the larvae out of the trees have some advantage.
你知道，也许可以把树里的幼虫搞到手的乌鸦，真有一些优势。
The crows sailing overhead perhaps watched me while I took this survey. I wonder what they thought.
我这么观察着的时候，在头顶滑翔的乌鸦们也许正俯视着我。
And during high tide, when the crows were forced closer to a nearby forest where predators abound, no crows were manning battle stations.
涨潮期间乌鸦被迫靠近附近一个有许多食肉动物的森林，这时任何乌鸦也不干警戒战斗的事。
And the fact that, over time, a growing number of the crows reacted to the "dangerous" masks suggests that flock mates learn from each other.
同时事实是，随着时间推移，能够辨识“危险”面具的乌鸦数量在增长，这说明乌鸦群体在互相学习这一信息。
The crows, by the dozen, were crossing the river, high in the air, and they would come down on the trees and among the fields across the river.
成打的乌鸦正从天上高高地飞越河面，它们会落在河那边的树丛上和田野里。
Until they finally graduated and left campus - and glad to get away, I'm sure - came back sometime later, and found the crows still remembered them.
等到他们再次回到学校的时候，竟然发现那些乌鸦还记得他们！
Now it’s this latter muscle that’s involuntary, so the crows feet smile is considered the real spontaneous emotion and is known now as the Duchenne smile.
现在发现眼轮匝肌的动作是无意识做出的，因此，带鱼尾纹的微笑被看成是情感的自然流露，誉为杜乡式微笑（发自内心的微笑）。
Scholarship support from the Crows Nest club is an important means of helping children continue their education and build toward a future unshackled by poverty.
乌鸦巢扶轮社所提供的奖学金是帮助儿童继续接受教育，并为一个不受贫穷桎梏的未来做准备的主要工具。
Since books would be published whether permitted or not, licensing is likened to "the exploit of that gallant man who thought topound up the crows by shutting his park gate."
由于书籍在批准与否的情况下都应予以出版，弥尔顿将出版许可比作“殷勤者为了赶走乌鸦而关上公园大门的举动”。
The researchers then gave a mix of neutral and dangerous masks to volunteer observers who, unaware of the masks' histories, wore them at the trapping sites and recorded the crows' responses.
之后，研究人员将中立派和危险人物的面具分发给了并不了解面具历史的志愿观察者，让他们戴着面具在诱捕地点活动并记录乌鸦的反应。
We've learnt a great deal about the ability of New Caledonian crows to use tools, and some very interesting research is being carried out into them.
我们已经了解了很多关于新喀里多尼亚乌鸦使用工具的能力，并且正在对它们进行一些非常有趣的研究。
Scientists have collected samples from crows in order to estimate the proportion of larvae in their diet.
科学家们从乌鸦那里收集了样本，以估计它们食物中幼虫的比例。
The cock crows and the dawn chorus begins.
公鸡叫了,众鸟的清晨鸣唱随之开始了。
The cock crows and the dawn chorus begins.
公鸡叫了,众鸟的清晨鸣唱随之开始了。
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