有關環境科學概論的專有名辭

請問下列意思.能幫忙翻譯就幫幫忙吧: 1.What are the major characteristics of freshwater streams and rivers? A downhill ride 2.major ecological and economic services provided by freshwater systems 3.名辭: lrrigation water .transportation corridors .recreation .employment .climate moderation .waste treatment and dilution .flood... show more 請問下列意思.能幫忙翻譯就幫幫忙吧:
1.What are the major characteristics of freshwater streams and rivers? A downhill ride
2.major ecological and economic services provided by freshwater systems
3.名辭: lrrigation water .transportation corridors .recreation .employment .climate moderation .waste treatment and dilution .flood control .grundwater recharge .habitats for aquatic and terrestrial species .genetic resources and biodiversity .scientific information.
以上都是環境科學概論中所用單字 懂的請幫忙救就同胞 有打錯請更正
謝謝各位的幫忙
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