????:2024-10-09 00:34:29 ??:????
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??10??????????????????????????8??????????????? ?????????????????????8??????????????????,????????????,?58%,?????????????,?????????????????????????
???????,???«Wetlands»???????????????????????,???1?????????????3???????????????:1920???????1950????,??????????;????????1950?????,??;??2010?????????????,?58%??????
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?????????????,??????????,?????????1984?2016?????16%?20????????????????,????????????,????????????,?????????????
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