帮忙翻译下!急~谢谢i think that after i spent my time under water

帮忙翻译下!急~谢谢i think that after i spent my time under water
i think that after i spent my time under water,the most important thing that i came back with was the realization that it is now possible for men to live permanently where once they could not even venture for a second ,and this is of tremendous importance because if you realize what it means.it means that advancing technnology now has peeled off a layer of ocean water 200 metres thick and it opens up vast new lands and resources and knowledge which is only 200 metres away and which has been there waiting for us for centuries.