Scientists have discovered that an annual event when Emperor penguins completely shed and regrow their feathers is putting the birds in peril as Antarctica is transformed by a warming world.
优化：随机选基准避免最坏情况 O(n²)
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if (deflate.result) yield [deflate.result];。关于这个话题，heLLoword翻译官方下载提供了深入分析
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刘成的妻子早年曾怀过孕，但不幸流产。此后因子宫内膜粘连，再也没能怀上。