当他打开窗户时鸟就飞出去了。
这扇门能让我们在天气不好时把这些鸟关在庇护处。
The door enables us to shut the birds in the shelter in bad weather.
当处于危险之中时，有些鸟会保护他们的孩子。
Some birds will protect their babies when they are in danger.
其他鸟在孵化破壳时很无助。
通过对鸟群几十年的研究，研究人员预测，那些更容易受伤的、睡眠时处于队列末端的鸟会格外警觉。
Decades of studies of bird flocks led researchers to predict extra alertness in the more vulnerable, end of the row sleepers.
当这种情况发生时，成鸟通常不会在意，只是会比平时更加小心一点。
When this happens, the parent birds usually won't care, other than to be a little more careful than normal.
新发射的代号是凤凰号，当你想到从灰烬中升起的象征意义的鸟时，你会觉得这个代号有点有趣。
The code name for the new launch was Phoenix, kind of funny when you think of the metaphorical bird rising from the ashes.
当前面的鸟上下移动它的翅膀时，产生的空气力会带动下一只鸟。
When the front bird moves its wings up and down, the resulting force of the air lifts the next one.
每隔三四年，条件适宜时，湖面上就会布满火烈鸟，它们停止飞行开始繁殖。
Once every three or four years, when conditions are right, the lake is covered with the pink birds as they stop flight to breed.
在野外，这些鸟会储存食物以备日后食物短缺时再取用。
In the wild, these birds store food for retrieval later during periods of food scarcity.
一只鸟第一次吃到一只颜色鲜亮的大黄蜂时，它得到了一个糟糕的惊喜。
The first time a bird eats a brightly colored bumblebee, it gets a nasty surprise.
当他们让一只燕鸥或鹈鹕扔下一条鱼时，他们会一头栽到水里，然后把鱼从水面抓起来，这可能就是这只鸟被油弄脏的原因。
When they get a tern or pelican to drop a fish, they plunge down and grab it off the surface of the water, which may have been how this bird got oiled.
当一只被戴了标记环的鸟被重新捕获时，我们就能从报告中了解其迁徙路线、生长情况以及存活时间、寿命。
When a banded bird is recaptured and reported, we learn about its migration route, its growth, and how long it has been alive, its lifespan.
当流感病毒由一个人或一只鸟传给另一个人或鸟时，由于病毒复制错误，它们通常会带上基因中的随机变化。
As influenza viruses pass from one person, or bird, to another, they normally pick up random changes in their genes because of errors in viral replication.
画中描绘的是一名上了年纪的老妪正在贩售她的鸟，仿佛彰显的是一个忘时的埃及主题，今天以及百年前埃及都拥有的主题。
In it, an old woman sells her birds in a scene that speaks of the timelessness of Egypt and a theme as valid today as a century ago.
而这两个族群更有可能从此进化成两种不同的物种，那些冬季呆在英国的黑头莺在飞回德国繁衍后代时，更趋向于和“同道中鸟”喜结连理。
The two populations may even be splitting into two species. The blackcaps that winter in England tend to mate with each other when they return to Germany.
但是晨风吹拂中可以听见枝桠飒飒有声；阳光中的阵雨洒落在窗口时可以听见音乐；可以听见百鸟啁啾唱起了晨歌。
But there is the rustle of branches in the morning breeze; there is the music of a sunny shower against the window; there is the matin song of birds.
英国的布谷鸟从不搭建自己的巢，而是趁别的鸟妈妈离开时将自己的蛋下在她的窝里。
The English cuckoo bird never builds her own nest. Instead, she lays her egg in a different mother bird's nest when that bird is away.
但雌造园鸟与其被尺寸所蒙骗，不如在挑选“郎君”时立足于他是多么聪明的使自己看上去如此强壮。
And rather than being fooled about size, a female may be selecting a male based on how clever he is to make himself look so swell.
它们见到B好像很高兴，但当他把笼门打开时，那些鸟发出饥饿的叫声飞了出来。
They seemed delighted to see b, but flew off with famished cries when he unlocked the bars.
只是当他去了伦敦动物园时他才看到那些鸟仍然呆在笼子里。
It was only when he visited London Zoo that he found that the birds still remained within their cages.
当我开始养宠物鸟的爱好的探险之旅时，从没想到能从鸟身上学到什么。
When I began my venture into the hobby of keeping pet birds, I never imagined that birds could teach me anything.
的确，在驾车去伦敦时在M40公路路口看到那些鸟们在天空翱翔，真的很振奋人心。
I love to see these majestic birds soaring over the cut on the M40 as I drive to London. They lift my spirits.
亨利站在那儿聚精会神地看着，期待每一页新的神奇，当看到沙丘鹤，美洲骨顶鸡，大海雀，大啄木鸟时，他欣喜的叫了起来。
Henry stands attentively, waits each time for the new wonder, emits small noises of pleasure for each Sandhill Crane, American Coot, Great Auk, Pileated Woodpecker.
亨利站在那儿聚精会神地看着，期待每一页新的神奇，当看到沙丘鹤，美洲骨顶鸡，大海雀，大啄木鸟时，他欣喜的叫了起来。
Henry stands attentively, waits each time for the new wonder, emits small noises of pleasure for each Sandhill Crane,American Coot, Great Auk, Pileated Woodpecker.
当我听到那些唱乐曲终了的华彩句的歌手，模仿着鸟的啭鸣时，我就禁不住要笑。
I could hardly keep from laughing when some of the cadenzas imitated the warbling of birds.
极乐鸟因华丽耀眼的羽毛和求偶时的殷勤而闻名。
These birds are famed for their dazzling plumage and courtship displays.
在莫斯兰汀并没有太多鸟可看，至少在涨潮时是这样。
The bird-watching isn't much at Moss Landing, at least while the tide is in.
在莫斯兰汀并没有太多鸟可看，至少在涨潮时是这样。
The bird-watching isn't much at Moss Landing, at least while the tide is in.
应用推荐