短語(yǔ)詞組短語(yǔ)Capacity of ecotourism environment 生態(tài)旅遊環(huán)境容量ecotourism environment problem 生態(tài)旅遊環(huán)境問(wèn)題Ecotourism environment optimization strategy 生態(tài)旅遊環(huán)境優(yōu)化策略 返回 ecotourism environment