We've been talking about the decline of coral reefs in tropical areas all over the world—how natural and man-made stresses are causing them to degrade or in some cases, to die.
我们之前提到了世界各地热带地区中珊瑚礁的衰落，即自然和人为（造成的）压力是怎样造成珊瑚礁退化，或者甚至在某些情况下，造成它们死亡的。
Various companies offer trips out to sea to experience the natural beauty of coral, exquisitetropical fish in every color imaginable, and an incomparable underwater life.
许多公司都提供深海旅行，感受美丽天然的珊瑚，你所能想像的到的颜色美丽的热带鱼，以及无与伦比的海洋生物。
Various companies offer trips out to sea to experience the natural beauty of coral, exquisite tropical fish in every color imaginable, and an incomparable underwater life.
许多公司都提供深海旅行，感受美丽天然的珊瑚，你所能想象的到的颜色美丽的热带鱼，以及无与伦比的海洋生物。
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