天然照亮 tiānrán zhàoliàng
          
              tiānrán zhàoliàng 
              
              set phrase 
              natural lighting 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain:  
              
              
                , Concept:  
              
              
              
                Notes: (CC-CEDICT '天然照亮')