They are wild animals that have never been handled. 它们是人类从未应对过的野生动物
and that makes protecting them difficult, too. 这也使得保护它们变得困难
There's a dolphin that surfaced just right there. 那里有一只印度河豚冒出水面
that simply cannot survive without it. 没有淡水 便无法生存
..that diverts and drains the great Indus River. 从而从印度河中引水配水
to ensure that it is always available to meet our every demand. 来确保有足够淡水满足我们的需求
Those that reach the top can now prepare to breed. 抵达瀑布顶端的虾虎鱼现在可以准备繁殖了
is somewhere that ocean predators can't reach. 是海洋捕食者无法染指的地方
but for those that do, there can be great rewards. 但风险越高 收益越高
But his aim must be better than that. 但显然还需要继续提高