亚洲精品亚洲人成在线观看麻豆,在线欧美视频一区,亚洲国产精品一区二区动图,色综合久久丁香婷婷

        

          

              




              

              
	
                
              
	
	

              

              





              	當(dāng)前位置：首頁(yè)   >  英漢互譯  >  英語(yǔ)語(yǔ)音  >  正文 
              



              
	
              
		
		
              
			
              
				
              Unit 3 Front Vowels:/i:/，/&618;/，/e/，/&230;/
               基礎(chǔ)科學(xué) 
              
				
              

											Unit 3 Front Vowels:/i:/，/&618;/，/e/，/&230;/圖片（共4張） :
						
              Unit 3 Front Vowels:/i:/，/&618;/，/e/，/&230;/
              
										 
                      IntroductionThere are four front vowels in English: /i:/, /&618;/, /e/ and /&230;/. In forming the frontvowels the front of the tongue is chiefly instrumental in giving the vowels their quality.The varying distance of the tongue from the hard palate in co......（本文共 18844 字, 4 張圖）      [閱讀本文] >> 
               
			  
				 
              
				 
				
				
              
					開通會(huì)員，享受整站包年服務(wù)立即開通 >
				
              
				

			
              

			
              
				
               推薦內(nèi)容