Scientistsknowhowtom的精选

问题详情：Scientistsknowhowtomakeseawaterfresh.Theyknowmany 41 oftakingoutthesalt.Onewayistoboilthesaltwater. 42 thewaterboils,the 43 rises.Whenthesteam（蒸汽） 44 itbecomesfreshwater. 45 wayistou...