Like packs of sharks, they're on the prowl for sleeping cichlids. 它们像是一群鲨鱼 一边游一边寻找熟睡中的慈鲷
battle their way for hundreds of miles upstream. 奋力逆流而上数百英里
Pickings are usually thin for the salamanders, 大鲵的收获通常都比较少
Usually, these mountain streams only provide enough food for small animals to survive. 通常 山涧提供的食物 只能维持小型动物生存
Its waters drop unbroken for almost a thousand metres. 流水不间断地从将近1000米的高处落下