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1.The survival conditions in the desert are harsh and unforgiving.
沙漠的生存条件非常严酷且无情。
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2.The survival conditions of the species depend on the availability of food and water.
该物种的生存条件取决于食物和水的可用性。
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3. The survival conditions for humans have improved significantly over the past century.
人类的生存条件在过去一个世纪内得到了显著改善。