词汇	ecological tourism system
释义	ecological tourism system 旅游生态系统
随便看	transient phenomenon transient phenomenon on switching transient phenylketonuria transient phonomenon transient photoconductivity transient photoconductivity effect Transient photosynthesis Transient photovoltage transient planetary wave Transient plane thermal source method transient plasma transient plasma ignition transient plymorphism transient pneumonia transient point transient polymorphism transient polymorphismford 1940 transient population transient population from abroad transient population of peasants transient population,vagrant population transient pore pressure transient portion transient position transient potential vanilloid receptor