Perhaps in the future man will live in the sea,away from the crowded and noisy cities on land. Then sea has plenty of space,not only for floating communities and parks,but also for storing supplies and for underwater travel.

• 或许将来人类将住在海里，远离陆地上拥挤而又喧嚣的城市，海有足够大的空间，不仅可供(建立)水上居民点和公园之用，而且可供贮存物资并进行水下旅行。