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Text Would you choose to live underground if you could gain many advantages from doing so? Weather would no longer trouble you. Temperature would remain the same all the year round. Artificial lightin

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That's also well put, the Canadian replied. 您这些话很正确，加拿大人回答说， But your proviso applies to any escape attempt, whether it happens in two years or two days. 但您提出的这一点可以应用到所有逃走的计划上面

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加州英语分级G6 Changes at Earth's Surface 16

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加州英语分级G6 Changes at Earth's Surface 15

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【英语时差8，16】深处睡眠1

Almost every animal ever studied spends a large part of each day sleeping. Sleep is thought to play an essential role in the health of almost all animals. Because of this, scientists have long wondered how cetaceans, such as whales and dolphins, get