They no longer depended on hunting for survival. 他们不再以狩猎为生
You need to learn the basics of jungle survival. 得学习丛林生存基本技能
Well, there goes our chance for survival. 我们的救星跑掉了
so statistically you have a good probability of survival. 所以从统计上来讲你有很大的生存几率
But it exists at the very limits of survival. 这里的生命时时刻刻处于危机之中
and have the best chance of survival 将在严酷的深海世界中