And some birds do not build nests at all.
并且有些鸟根本不筑巢。
However, some birds thrive in noisy environments.
然而，有些鸟会在嘈杂的环境中茁壮成长。
Some birds build their nests on the ground, while others bury their eggs under the ground.
有些鸟在地上筑巢，有些则把蛋埋在地下。
Some birds migrate by flying to a warmer place for the winter, where they can find more food.
有些鸟会飞到更温暖的地方迁徙过冬，在那里可以找到更多食物。
The birds are hard to observe, as they live in a region of mountainous forest, so the researchers have attached tiny cameras to the tails of some birds, as one method of investigating their behaviour.
这些鸟很难观察，因为它们生活在山区森林里，所以研究人员在一些鸟的尾巴上安装了微型摄像机，以此作为一种研究它们行为的方法。
Now you have some birds that are quiet mature, quite capable, almost as soon as they hatch.
现在你拥有了一些几乎一孵化出来就相当成熟、相当能干的鸟儿。
He looked up and saw some birds.
他抬头望去，看见了一些鸟。
Some birds start flying to warmer places.
一些鸟开始飞到暖和的地方。
Ihave to remind myself that some birds don't mean to be caged.
我得经常同自己说，有些鸟儿是关不住的。
Some birds have been incorporated onto national flags or emblems.
有些鸟还被作为国旗或国徽的组成部分。
You know some birds are not meant to be caged, their feathers are just too bright.
你知道，有些鸟儿是注定不会被关在牢笼里的，它们的每一片羽毛都闪耀着自由的光辉。
Some birds are very lively in their sports; and the same is true with some insects.
有些鸟类在玩起来的时候是很活跃的，有些昆虫类也是如此。
Some birds aren't meant to be caged, that's all. Their feathers are just too bright!
有的鸟是不会被关住的，因为它们的羽毛太美丽了！
some birds aren't meant to be caged, that's all. Their feathers are just too bright..。
有的鸟是不会被关住的，因为它们的羽毛太美丽了！
He asked some birds if they knew where the penguin came from. But they ignored him.
他去问小鸟们，知不知道小企鹅是从哪里来的啊，可是她们却睬都不睬他。
And just like humans, some birds need to pick out just one voice in the crowd, Theunissen says.
就像人一样，有些鸟需要在鸟群中挑选出一些声音，Theunissen说。
We are going to add some birds to the right of the clouds the same way we made the clouds in Step 16.
我们将运用与步骤16相同的方法，在云彩左方添加一些飞鸟。
Many people pay 10 Yuan and spend a whole day in tea house, enjoying tea, a newspaper, and some birds in cage.
许多人花费10元，在茶馆里呆上一整天，品茶、看报纸、逗逗笼子里的鸟。
We have observed things like praying mantis just feasting on them, some spiders, toads. Some birds do eat them.
比如，我们观察过进食这些蝽卵的蟑螂，还有蜘蛛蟾蜍之类，有些鸟也吃。
Ticks that spread Congo fever can infect, and are spread by, many wild and domestic animals, including cattle and some birds.
传播刚果热病毒的蜱能使许多野生动物及家畜感染并使它们成为传播者，包括牛和一些鸟类。
Many of the creatures that eat salmon and trout, such as bears and some birds, have had their ranks thinned by human activity.
自然界很多动物捕食大马哈鱼和鳟鱼，例如熊类和个别鸟类。而这些动物由于人类的活动逐渐变得稀少。
Some birds traverse the Sahara and the Mediterranean Sea in a one go, while others make a pit-stop in northern Africa before crossing.
有些候鸟一口气横穿撒哈拉沙漠和地中海，而有些则在穿越前在北非稍作休整。
The team also identified some birds with small brains which have survived in the city by finding niches which resemble their natural environment.
该研究团队还发现，一些大脑较小的鸟类通过找到类似与它们自然生存环境的居所得以在城市中生存。
Birds do not all live throughout the world, and some birds are so geographically regional that they can only be found within a handful of states.
并不是所有鸟类都能在世界各地看到，一些鸟儿的分布过于地区化以至于只能在某些地方才能找到。
Interestingly, syllogisms are easier to evaluate in the form "no flying things are penguins; all penguins are birds; so some birds are not fliers."
有意思的是我们觉得这样的三段论更容易判断：“没有飞行的物体会是企鹅，所有企鹅都是鸟类，所以有些鸟类不是飞行物。”
Typically only birds who rely on insects as their primary source of food fly south for the winter, and some birds are drawn to water and wet environments.
基本上只有以昆虫为直接食物来源的鸟类才会在冬季南迁，还有一些鸟儿只能栖息在水源和潮湿环境附近。
A field investigation at the time found that the case was exposed to diseased poultry in the vicinity of his home, where some birds tested positive for the H5 virus subtype.
当时的现场调查发现，该病例曾接触其住家附近的病禽，那里某些禽类检测H 5病毒亚型呈阳性。
A field investigation at the time found that the case was exposed to diseased poultry in the vicinity of his home, where some birds tested positive for the H5 virus subtype.
当时的现场调查发现，该病例曾接触其住家附近的病禽，那里某些禽类检测H 5病毒亚型呈阳性。
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