全世界的珊瑚礁都在消亡。

All over the world, coral reefs are dying.

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珊瑚礁成为世界范围内无数人一个重要的食物来源。

This makes reefs an important source of food for millions of people around the world.

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珊瑚礁成为世界范围内无数人一个重要的食物来源。

This makes reefs an important source of food for millions of people around the world.

youdao