如果我们坚持读书，我们的学习成绩会有很大的提高，我们认为我们的未来也会变得更光明。

Our school studies can be greatly improved if we keep reading, and we think that our future will become brighter.

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虽然未来我们的大部分食物可能会在摩天大楼里种植，但目前大多数专家认为，我们更有可能只是利用城市屋顶上的可用空间。

While it is possible that much of our food will be grown in skyscrapers in future, most experts currently believe it is far more likely that we will simply use the space available on urban rooftops.

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如果我们承认人类对地球的操纵是一种破坏，我们也可以认为，人类的努力可以帮助我们在未来几个世纪建立一个破坏性较小的世界。

If we acknowledge that human manipulation of the Earth has been a destructive force, we can also imagine that human endeavours can help us build a less destructive world in the centuries to come.

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