A group of African penguins gather near a pond at a conservationsite in Cape Town, South Africa. Birdlife International say the African penguin is edging closer to extinction.
一群非洲企鹅挤在开普敦一处保护中心的池塘边。国际鸟类联盟认为非洲企鹅正濒临灭绝。
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But the most promising site for new conservation is at home.
但是最有希望节约电力的地点是在家里。
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William Lindesay, a Briton who has spent nearly a quarter-century working on wall conservation, says he thinks camping at a World Heritage site is simply "unacceptable".