Why is swamp called swamp?

来源: 于 2012-01-14 06:44:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

洼井池塘溪泉沼泽滩涂港汊水库湖泊冰川瀑布江河海洋
Slight depression wells ponds lakes reservoirs swamp stream brook spring marsh tidal banching stream marine glacial rivers waterfalls

After read
http://en.wikipedia.org/wiki/Swamp
It confirmed my conjection about its secret

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