sub-soil 

  1. 名詞
不可數名詞: 底土
下層土
天然地基

    
                        
    2. 
                                                                        
  2. 

    動詞
及物動詞:
掘起...(土地等)的底土
深耕...(土地等)
深挖...(土地等)
/此動詞過去式與過去分詞為"subsoiled"/
/現在分詞為"subsoiling"/
/第三者單數現在式"subsoils"/

    

    
                        
    3. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                The soil is loam; subsoil , loam.                            
    2. 
                                                    
  2. 
                                The soil is shallow, with a clay subsoil .                            
    3. 
                                                    
  3. 
                                The soil is sandy, and the subsoil is clay.                            
    4. 
                                                    
  4. 
                                Break up the subsoil , adding organic matter.                            
    5. 
                                                    
  5. 
                                The subsoil is about 0.2 ft. below the surface.                            
    6.