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              19.1 The Nature of Stress
               基礎(chǔ)科學(xué) 
              
				
              

					 
                      The nature of stress is simple enough - practically everyone would agree that thefirst syllable of words like father,open,camera is stressed,that the middle syllable isstressed in potato,apartment,relation and that the final syllable is stressed in about,......（本文共 4412 字）      [閱讀本文] >> 
               
			  
				 
              
				 
				
				
              
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