回复：西子，说说看！

来源: 越王剑 于 2012-02-27 14:51:02 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (175 bytes)
回答: 西子，说说看！ 由 途中燕子 于 2012-02-27 12:06:13

You can hear it even with windows closed. Low frequency noise pass a long way if there is no trees or buildings in between.

Especially at night.

Stay away from high way.

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