词汇	arctic ecosystems
释义	arctic ecosystems 北极生态系统
随便看	Commodity Futures Trading Commission Commodity Futures Trading Commission Act Commodity Futures Trading CommissionCFTC Commodity futures trading commission CFTC Commodity Futures Trading Commission Docket commodity gold commodity grain commodity grain base commodity grain production base commodity group commodity hardware Commodity:Hot dipped galvanized steel in coil commodity input matrix commodity input output table commodity input structure commodity in short supply commodity inspection fee commodity inspection law commodity inspection mark commodity house commodity-house loan commodity house presell commodity house pre-sell commodity house purchase and sales contract commodity houses