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As for Billy White and his team, they continue to do what they have always done.

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As you can imagine, life in the barracks was quite a change from home.

科学家正极力研究治愈艾滋病(AIDS)的良方。(to push … to the limits)

There was no snow, but the leaves were gonefrom the trees,andthe grass was dead.

His telescope andhisexperiments were always bringing him new surprises,andhe made notes of his work every day.