the earth's population has almost tripled, 人口数量几乎增长3倍

297. Than by all previous generations of humanity.
     其速度远超以往历代
298. Faster and faster.
     越来越快
299. In the last 60 years,
     在过去的60年里
300. the earth's population has almost tripled,
     人口数量几乎增长3倍
301. And over two billion people have moved to the cities.
     超过20亿人口涌入城市
302. Faster and faster.
     越来越快
303. Shenzhen, in china,
     中国 深圳

来自《家园 第一部分 Home Part1》第 300 行