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关注:1
2013-05-23 12:21
求翻译:The occurence of the high-fluoride groundwater seriously threatens the drinking water safety of the local inhabitants, and is one of the important reasons for the scarcity of the fresh groundwater in the region.是什么意思?![]() ![]() The occurence of the high-fluoride groundwater seriously threatens the drinking water safety of the local inhabitants, and is one of the important reasons for the scarcity of the fresh groundwater in the region.
问题补充: |
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