相关单词临近词ecocars, ECO, eco-environmental degradation, Ecotourism resources evaluation, ecological riverbank protection, Eco-environment vulnerability, Ecological degenerative problem, Ecological agriculture location, ecologically orientated tourism, eco-tourism in mountain areas, ecological structure of talents, ecotypic science and technology相似词ecological, ecological footprint, ecologist, ecology, economic, economic migrant, economical, economical with the truth idiom, 返回 econometrics