backfills 

  1. 名詞
backfill複數: 填滿坑穴的泥土
填滿坑穴的物質
回填物

    
                        
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  2. 

    動詞
backfill第三者單數現在式:
及物動詞:
回填...(開鑿的洞穴等)

    

    
                        
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例句

                

                    
    
                                                    
  1. 
                                "When the power cuts out, it (lift station) backfills ."                            
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  2. 
                                Clay backfills require significantly stronger basement walls to withstand the larger horizontal pressures.                            
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  3. 
                                Retaining walls and backfills may have to be constructed to hold up the slope prior to shelter construction.                            
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