Two-thirdsoftheworld’smajorrivershavenowbeendisrupted(中...
问题详情：Two-thirdsoftheworld’smajorrivershavenowbeendisrupted(中断)withmorethan50,000damsinanattempttostolewaterandprovidepower.IntheUS，therearemorethan85，000dams，disruptinglargeandsmallrives,andinmostc...