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来源: 云河 于 2009-02-25 07:02:05 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (169 bytes)

The phrase "sleep tight" originated when mattresses were set upon ropes woven through the bed frame. To remedy sagging ropes, one would use a bed key to tighten them.

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• i'm a fan of this series... pls continue... -pega- ♀ 给 pega 发送悄悄话 pega 的博客首页 (0 bytes) () 02/25/2009 postreply 07:20:47

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