其次，不断扩张的人口规模需要更多的生存空间，而森林往往是人类愿意牺牲的第一个选择。
Secondly, the expanding human population requires more living space, and forests are always the first choice humans decide to sacrifice.
其次，不断扩张的人口规模需要更多的生存空间，而森林往往是人类需求的第一个选择。
In the second place, the expanding human population requires more living space, and forests are always the first choice humans decide to sacrifice.
其次，不断扩张的人口规模需要更多的生存空间，而森林往往是人类需求的第一个选择。
In the second place, the expanding human population requires more living space, and forests are always the first choice humans decide to sacrifice.
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