- The real mystery of easter island is
复活节岛的真正迷团 - Not how its strange statues got there.
并不是岛上奇异的雕像 - We know now.
我们现在已经知晓 - It's why the rapa nui didn't react in time.
当地人为何没及时作出反应 - It's only one of a number of theories,
这只是众多理论之一 - But it has particular relevance to us today.
但今天 对我们意义非凡 - Since 1950, the world's population has almost tripled.
自1950年以来 世界人口几乎翻了三倍