ecotourism造句 31. The establishment of environmental interpretation system is an effective medium for tourists a successful rural ecotourism. 32. Ecotourism programs minimize the adverse effects of traditional tourism on the natural environment.英文造句storage mediumindecomposablemanual handlingcomputer designrate of depreciationclarifiermarginal profitdumasexpectation of lifeboxing matchchemoprophylaxisprint queuelymphogranulomabought bookpolice lieutenantcontest withcompound proteinconcentric ringon the tickthoracesnoncommissioned officermetastaseslectinsense of right and wrongfigure skatehysteroscopyhepatic arteryostealelectric outlet