剑桥语音初级 lesson 03 Unit 40-43

主讲人：宗老师

40 Who was that? 强读式和弱读式：助动词 41 They're here! 缩略式 42 It's George's birthday. 词尾-s的发音 43 I looked everywhere. 动词过去式后缀-ed的发音