BBC.地平线.2020.从七十七亿人口开始免费在线观看无删减，According to the UN, it is predicted that the human population could reach ten billion people by the year 2050. For broadcaster and naturalist Chris Packham, who has dedicated his life to championing the natural world, the subject of our growing population and the impact it is having on our planet is one of the most vital – and often overlooked – topics of discussion in an era ... 当未知遇上——《BBC.地平线.2020.从七十七亿人口开始》这部2020年英国 纪录片片现已在影月小栈免费影视开启专题解读，揭秘幕后创作故事。