lifelines 

  1. 名詞
lifeline複數: 救生索
生命線, 命脈
(潛水員的)通報繩

    
                        
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例句

                

                    
    
                                                    
  1. 
                                Now let us go from lessons to lifelines .                            
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  2. 
                                Roads are our lifelines and economic arteries.                            
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  3. 
                                Rivers are the lifelines of the East Rift Valley.                            
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                                Lifelines can be taught in four 45-minute lessons.                            
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                                There is such a need for more of these lifelines .                            
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