anthracite 

  1. 名詞
不可數名詞: 無煙煤

    
                        
    2. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                And thus, their relative lack of anthracite .                            
    2. 
                                                    
  2. 
                                Some underground anthracite coal is also being mined.                            
    3. 
                                                    
  3. 
                                His father was a Ukrainian-born anthracite coal miner.                            
    4. 
                                                    
  4. 
                                Its principal employer was the anthracite coal industry.                            
    5. 
                                                    
  5. 
                                In 1810, 350 tons of anthracite was mined in Pennsylvania.                            
    6.