Most spiders weave webs that are almost invisible.
大多数蜘蛛可结成几乎看不见的网。
The insects cannot see the webs.
昆虫看不见网。
蜘蛛为什么住在网上？
为什么蜘蛛要织网？
Many spiders make webs to catch food.
许多蜘蛛都是靠织网来捕捉食物的。
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。
These spiders spin large webs in which females suspend a cocoon with hundreds of eggs.
这些蜘蛛结成很大的网，雌性蜘蛛在上面用成百上千的卵悬挂茧。
Some species of the spider weave designs into their webs, creating zigzag patterns that can either attract prey, like bees, in bright sunlight.
一些种类的蜘蛛能设计织网，设计出可以在明媚的阳光下吸引像蜜蜂等猎物。
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。
蜘蛛网非常神奇。
有些蜘蛛网可以用作盛卵箱。
They make webs that cheat insects.
它们会通过织网来欺骗昆虫。
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。
In fact, some spiders' webs are among the world's strongest materials, but they can be pulled longer than elastic.
事实上，有些蜘蛛网虽然是世界上最坚硬的材料之一，但是它们可以被拉得比橡皮筋还长。
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。
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。
In the star war movies, Darth Vader webs out his life server and slices off the hand of Luke Skywalker.
在星球大战电影里，达斯·维特脱下救生圈并砍掉了卢克·天行者的手。
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。
Nets, Webs and Information infrastructure.
《网络、网站和信息基础设施》。
它的两张网。
'it's the silk that spiders make their webs with.
是蜘蛛直往用的蜘蛛丝。
Because it often swims in water so it has webs on its feet.
因为它常在水里游泳，所以它脚上有蹼。
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。
That's the theme of Gardner, Ashby, May and my early work on food webs.
这是加德纳和阿什比，迈和我对食物网早期研究的主题。
People spontaneously create their own social webs to get their work done.
人们自发地创建他们自己的社会网来完成工作。
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。
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。
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