日期:
来源:雅诚德英语网
We know, however, that contemporary hunter-gatherer societies control their population in a variety of ways.
然而,众所周知,当代的采集狩猎者以各种方式控制其人口。
We know, however, that contemporary hunter-gatherer societies control their population in a variety of ways.
然而,众所周知,当代的采集狩猎者以各种方式控制其人口。