Most spiders weave webs that are almost invisible.
大多数蜘蛛可结成几乎看不见的网。
为什么蜘蛛要织网？
Black widow spiders also use their webs to ensnare their prey.
黑寡妇蜘蛛也用它们的网诱捕猎物。
Scientists have found out some key principles operating in food webs.
科学家们已经发现了在食物网中起作用的一些关键原理。
Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
数学模型也揭示了食物网可能是不稳定的，顶级肉食性动物的微小改变会对整个生态系统产生巨大影响。
Support for this idea came from the observation that long-lasting climax communities usually have more complex food webs and more species diversity than pioneer communities.
支持这一观点的是，长期存在的顶极群落通常比先锋群落有更复杂的食物网和更多的物种多样性。
Advertisers now place "banners", links to commercial web sites decorated with attractive pictures designed to catch our eyes while browsing the webs, on key web sites with heavy traffic.
广告客户现在在流量大的主要网站上放置“横幅”，设置链接到商业网站，上面装饰有吸引人的图片，以吸引我们的眼球。
蜘蛛网非常神奇。
Spider webs are so amazing that engineers have been studying them for years.
蜘蛛网是如此神奇，以至于工程师们多年来一直在研究它们。
Good readers often use a flowchart (流程图) or webs (网状图) to have better picture of what they read.
优秀的读者通常会使用流程图或网状图来更好地理解他们看的书。
Although they have made great progress in science and technology, humans still haven't been able to copy natural webs.
尽管人类在科技上取得了巨大进步，但仍然无法复制自然的蜘蛛网。
Spider webs are more than homes, and they are ingenious traps.
蜘蛛网对蜘蛛来说不仅仅是家，它们还是奇妙的引虫入网的陷阱。
Golden orb weavers' large, strong webs have ensnared prey as large as birds.
金球织网蜘蛛大而坚固的网曾诱捕到大如鸟的猎物。
PHILADELPHIA -- Peter Parker is dead and gone, but Spider-Man's still slinging webs and fighting crime.
费城——彼得·帕克已作古，但蜘蛛侠仍在吐丝布网，与罪恶做不懈的斗争。
Spiders are notorious hunters, luring prey into their sticky webs or ambushing them from behind a leaf.
蜘蛛是名声在外的猎手了，它们要么在黏黏的蛛网上守株待兔，要么躲在叶子之类的东西后面搞十面埋伏。
This means weaving webs of people-to-people ties that extend beyond Washington and New York, or Beijing and Shanghai.
这意味着建立人民与人民之间的联络网，不仅局限于华盛顿、纽约、北京或上海。
Overfishing not only causes depletion in individual fish stocks, but also disruption to entire ecosystems and food webs in the ocean.
过度捕捞不仅引起个别鱼种的消耗，而且还引起海洋中整个生态系统和食物网的崩溃。
Black widow spiders also use their webs to ensnare their prey, which consists of flies, mosquitoes, grasshoppers, beetles, and caterpillars.
黑寡妇蜘蛛也使用它们的网诱捕猎物，包括苍蝇、蚊子、蚱蜢、甲虫和毛虫。
The latest frontier of the pair's research is the dynamics of growth and decomposition, or what ecologists call the "green" and "brown" food webs.
这两人研究的最新领域是生长和分解的动力学，或者被生态学家称为“绿色”和“棕色”的食物网络。
Zoologist Ingi Agnarsson and colleagues have found Darwin's bark spider webs as wide as 82 feet (25 meters) -about as long as two city buses.
波多黎各大学的动物学家IngiAgnarsson和其同事发现了由达尔文吠蛛结出的宽达82英尺(约合25米)的蜘蛛网，这相当于两辆城市大巴的长度。
For example, he'd like to see his son suited up as Spider-Man on screen, shooting webs from his hands by performing the same hand gesture as his hero.
比如，他喜欢在屏幕上看到儿子穿成蜘蛛侠的模样，摆出蜘蛛侠那样的动作。
From the curl of a ram's horn to patterns of spider webs and the development of an embryo, Mr Ball examines the possible causes of the shapes and forms we observe.
从弯曲的公羊角到蜘蛛网的图形以及胚胎发育，波尔先生解释了我们能观察到的图形及形状可能的成因。
There are two common styles of water droplet shots; those of water splashing up from a pool and those of water caught upon surfaces such as leaves and spider's webs.
水滴拍摄通常有两种类型：池中飞溅的水花和蛛网叶片表面附着的水珠。
Despite widespread wireless Internet and satellite connections, global communications still rely largely on the vast webs of fibre optic cables that cover the planet.
尽管无线与卫星连接被广泛应用，全球通讯还是主要仰赖于遍布地球表面的光纤。
These webs aim to make semantic knowledge of data accessible, semantic services available and connectable, and semantic knowledge of individuals processable, respectively.
这些网络可以让数据语义知识具有可访问性，让语义服务具有可用性和连接性，让个人语义知识具有可处理性。
In Australia, members of this genus were found to be feeding almost exclusively on spiders that are gleaned from webs hanging over small forest paths or between the foliage.
在澳大利亚，这一属的成员几乎只靠着林间蛛网和枝桠上的蜘蛛过活。
In Australia, members of this genus were found to be feeding almost exclusively on spiders that are gleaned from webs hanging over small forest paths or between the foliage.
在澳大利亚，这一属的成员几乎只靠着林间蛛网和枝桠上的蜘蛛过活。
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