All this engineering was to the trees' advantage, the researchers say. Because river Banks provide trees with easy access to water, without the constant risk of flooding.
研究人员表示，对河流进行的这些工程学修饰是对树木有利的，因为河岸能向树木提供易于取得的水源，也没有发生洪水的经常性风险，而这几乎都是人类所需要的条件。
Hundreds of thousands of people who weren't killed by the water that tore down buildings and flung cars into trees found themselves homeless and without livelihoods.
成千上万没被水淹死的人也发现房子全塌了，无家可归，没有生计了。
Some trees can survive a long time without water. Think of trees that grow in the desert.
有些树木在缺水的情况下也能存活很长时间，例如沙漠中生长的树木。
Some trees can survive a long time without water.
一些树木在没有水的情况下也可以生存很长时间。
Trees provide food, water and shelter for people, plants and animals and without them the diverse ecosystems we all need to survive will collapse.
树木为人类和动植物提供食物、水分和庇护，失去它们，我们赖以为生的多样生态系统将会崩溃。
I have cities but no houses, forests but no trees; rivers but without water; what am I?
我有城市但没有住宅，有森林但没有树木，有河流但没有水，我是什麽?。
I have cities but no houses, forests but no trees, rivers without water. What am I?
我有城市但是没有房子，我有森林但是没有树木，我有河流却没有水，我是什么呢？
They cut down trees without any plan. As a result, some forests were destroyed. The water and soil was carried away.
他们没有计划的乱伐乱砍，作为回报，一些森林被破坏了，造成了严重的水土流失。
They cut down trees without any plan. As a result, some forests were destroyed. The water and soil was carried away.
他们没有计划的乱伐乱砍，作为回报，一些森林被破坏了，造成了严重的水土流失。
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