years

360 篇文章
In less than four years,
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In less than four years, 在接下来的至少4年时间里

than less four in years
Relying on memory, the matriarchs lead their families to those special water holes that saved them in previous years.
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Relying on memory, the matriarchs lead their families to those special water holes that saved them in previous years. 领头的老雌象 凭着记忆 带领全家大小去寻找以前救过它们的水坑

previous saved families matriarchs relying holes memory lead those special their water in that them the to on years
Eggs that have remained in the ground for 20 years begin to hatch.
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Eggs that have remained in the ground for 20 years begin to hatch. 在地下埋藏了20年的虫卵开始孵化

remained hatch eggs begin ground for in that have the to years
A single shower can enable seeds that have lain dormant for 30 years or more to burst into life.
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A single shower can enable seeds that have lain dormant for 30 years or more to burst into life. 一场大雨使得在地下沉睡了30多年的 种子迸发出生命的活力

burst lain seeds shower dormant life enable or more can into for single that have to years a
Some parts may not see rain for fifty years
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Some parts may not see rain for fifty years 有的地方可能连续5年不会下一滴雨

fifty may rain parts some see not for years
The main body of these dunes may not have shifted for 5,000 years.
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The main body of these dunes may not have shifted for 5,000 years. 这些沙丘的主体 可能已有5000多年未曾移动

shifted dunes may main these body not for of have the years
500 years ago they supported one of the world's great civilisations
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500 years ago they supported one of the world's great civilisations 500年前 它们维系着 一个世界上最伟大的文明

civilisations supported world's great they of the one ago years
can take many thousands of years to develop.
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can take many thousands of years to develop. 经历了数千年的形成过程

develop thousands many can of to take years
These flooded caves in Mexico have remained virtually unchanged for thousands of years.
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These flooded caves in Mexico have remained virtually unchanged for thousands of years. 墨西哥的这些水洞 几千年来几乎保持不变

unchanged remained caves mexico flooded thousands virtually these for of in have years
For 500 years people have been harvesting the nests of cave swiftlets.
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For 500 years people have been harvesting the nests of cave swiftlets. 500年来 人们一直采集洞金丝燕的燕窝

harvesting nests swiftlets cave been for of have the people years