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来源:雅诚德英语网
Water flowing from the Ohio river is filtered through the riverbank and gathered in various collector wells.
俄亥俄河上的水在岸边被过滤,然后汇聚在多口集水井中。
Water flowing from the Ohio river is filtered through the riverbank and gathered in various collector wells.
俄亥俄河上的水在岸边被过滤,然后汇聚在多口集水井中。