美国鸟类保护协会估计每年有五亿只鸟被捕杀，家猫和野猫就捕杀了差不多其中的一半。
The American bird Conservancy estimates that up to 500 million birds are killed each year by cats - about half by pets and half by feral felines.
一本影响了生物学家查尔斯·达尔文的名为《美国鸟类》的书日前在苏富比拍卖行被拍出了天价--730万英镑，问鼎世界上最昂贵的书籍头衔。
A stunning book by the wildlife artist who influenced Charles Darwin sold for a world-record ?7.3million last night.
一本影响了生物学家查尔斯·达尔文的名为《美国鸟类》的书日前在苏富比拍卖行被拍出了天价--730万英镑，问鼎世界上最昂贵的书籍头衔。
A stunning book by the wildlife artist who influenced Charles Darwin sold for a world-record ?7.3million last night.
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