世界自然基金会的一项研究显示，由于污染、气候变化和过度开发，中国的湿地正遭受退化的严重威胁。
A WWF research showed China's wetlands were seriously threatened by degradation because of pollution, climate change and overexploitation.
先锋植物种子的增加和被猎杀动物的系统性变化是环境退化的证据。
Increases in seeds from pioneer plants and systematic changes in the animals hunted are evidence of environmental degradation.
先锋植物种子的增加，被猎杀的动物以及用于建筑和燃料的树木系统的变化是环境退化的证据。
Increases in seeds from pioneer plants and systematic changes in the animals hunted and the trees used for construction and fuel are evidence of environmental degradation.
这涉及到把年轻珊瑚从一个健康珊瑚礁移到一个退化的珊瑚礁上，通过促进年轻健康的珊瑚来接管，试图使退化的珊瑚礁再生。
This involves moving young coral from a healthy reef onto a degraded reef, in an attempt to regenerate the degraded reef by encouraging young healthy coral to take over.
它还是土地和水资源退化的一大根源。
奢侈的野蛮人制定了退化的内外标准。
The extravagant savage made the interior and exterior criteria of deterioration.
现在，只有退化的阿伊努族群还幸存下来。
退化的情形是怎样的？
首先，它缺乏对功能退化的预防。
First among them is its lack of provision for graceful degradation.
退化的受体无法正确的传递信息。
但呼吁阻止森林退化的不只是外国佬。
But it is not only gringos who clamour to stop deforestation.
当接近这些极限时各种架构退化的方式。
The manner in which various architectures degrade as these limits are approached.
研究发现，土地退化的主要驱动力是不良的土地管理。
The study found that degradation is being driven mainly by poor land management.
当社区获得退化的森林并接到恢复该森林的指示时，这些社区通常会照做。
Where communities were given degraded forest and instructed to regenerate it, they generally did so.
这个关键点很简单，顾客总是在搜寻中意的交易，这种寻求是不会退化的。
The point is simple: Consumers are always going to search for a deal, and this demand is not diminishing.
比如人类胚胎会发育出腮、蹼足和退化的尾巴，映现出远古水生生物的性状。
Human embryos, for instance, develop, then lose, gills, webbed feet and rudimentary tails, reflecting their ancient aquatic life styles.
研究结果进一步揭示了白藜芦醇防止因缺乏使用而引起的机能退化的潜在机制。
Study results further demonstrated some of the underlying mechanisms by which resveratrol ACTS to prevent the wasting adaptations to disuse-induced mechanical unloading.
估计有15亿人，或占世界人口四分之一的的人直接依靠正在退化的土地为生。
An estimated 1.5 billion people, or a quarter of the world's population, depend directly on land that is being degraded.
也有科学家认为，800种小蜥蜴的短小的有些甚至了退化的四肢提供了蛇起源的线索。
Still others suggest the short or sometimes nonexistent legs of the 800 species of skinks are clues to where limbless snakes originated.
一个主要的问题是，退化的土壤变得密实，造成吸水量减少，从而导致水从地表流失并将表土带走。
One major problem is that degraded soils become compacted and so absorb less water, which then tends to run off the surface, taking topsoil with it.
只有通过修改那些鼓励森林砍伐和退化的法律，以及支持鼓励居民种植合适树木，这一目标才能得以达成。
This can be done only if national laws that encourage continued deforestation and forest degradation are reformed; and if communities are supported to plant appropriate trees.
ISCo和洛杉矶的高级细胞技术机构都试图生产一种阻止或者逆转致盲的黄斑退化的干细胞。
Both ISCo and Advanced cell Technology, of Los Angeles, are trying to create stem cells that could stop-and possibly reverse-a process called macular degeneration, which leads to blindness.
例如，科学家知道没有四肢的蛇钻洞更有效率，但是它们的四肢究竟是如何退化的，依然是个谜。
For instance, although scientists know snakes can burrow more efficiently without arms and legs, exactly how they lost their limbs remains a mystery.
一个降低多国约束税率的协议能够降低自由贸易退化的风险，并且有助于建立奥巴马所倡导的多边互信。
A deal would reduce the risk of broader backsliding by cutting many countries' bound tariffs-and it would establish Mr Obama's multilateral credentials.
由于中风或老年痴呆症而导致生活行为退化的老年人，对于狗提供的无条件的情感常常能作出积极的回应。
The elderly, who have become withdrawn due to stroke or age-related dementia, 4 often respond positively to the unconditional affection that dogs offer.
由于中风或老年痴呆症而导致生活行为退化的老年人，对于狗提供的无条件的情感常常能作出积极的回应。
The elderly, who have become withdrawn due to stroke or age-related dementia, 4 often respond positively to the unconditional affection that dogs offer.
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