The findings contradict the long established belief that the amount of sleep we need falls as we approach middle and old age.

这项研究反驳了长期以来的观点，即随着年龄的增长，我们需要的睡眠时间会变短。

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Key emerging country markets - China, India, South Korea, and Australia – along with the long established Japanese market, contributed 0.9 GW of installations in 2009, or 12% of world demand.

亚太地区主要新兴光伏市场国家包括中国、印度、韩国、澳大利亚，以及历史悠久的日本市场。2009年，亚太市场安装量达到0.9GW，占全球需求的12％。

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And retailers haven't completely abandoned the traditional twice-yearly, inventory-clearing sales at the long-established times.

零售商也还没有完全摒弃长久以来形成的一年两次清空存货的传统销售活动。

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And retailers haven't completely abandoned the traditional twice-yearly, inventory-clearing sales at the long-established times.

零售商也还没有完全摒弃长久以来形成的一年两次清空存货的传统销售活动。

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