irrigation ditches
- 网络兴修沟渠
 irrigation ditches
irrigation ditchesirrigation ditches
兴修沟渠
什么意思_英语ditches在线翻译_有道词典... ... Drainage Ditches 最大流 Irrigation Ditches 兴修沟渠 disposal ditches 导水沟 ... 
                1
        
      2
        
      3
        
      5
        
       irrigation ditches
irrigation ditches