英语听力：自然百科 大堡礁：自然奇迹—10
时间：2014-10-29 07:03:32
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（单词翻译）
But even he has his limits. On the reef, there seem to be an almost infinitely1 variety of ways of feeding, some fish even cultivate their own food. So they're very protective of it.
There's one fish species that is so good at defending its particular patch of reef. But it's responsible for more attacks on
divers2 than any others. And that's this species here. This is a white damsel, and it's a constant gardener,
nurturing3 and caring for a patch of
algae4.
Much of the algae growing on the sandy sea bed is
edible5. So the damsel farms it in green patches, encouraging some species nipping down others and gently transforming the landscape around her. After all this hard work, she doesn't look
kindly6 on trespassers. Anything that swims too close is chased away. But is she brave enough to try to see me off.
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