Why is swamp called swamp?

来源: 于 2012-01-11 18:42:48 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

洼................................洋


Slight depression wells ponds lakes reservoirs swamp mud flats stream brook spring marsh tidal banching stream marine glacier rivers waterfalls ocean/sea


After read


http://en.wikipedia.org/wiki/Swamp


It confirmed my conjection about its secret



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