Vowel-5.Diphthongs【aʊ】

发音 嘴巴张开略圆,逐渐合拢 双唇逐渐收成圆形,舌后部抬起 单词 how now owl flour hour sour allow cow crowd town flower tower round shout sound out outcome output doubt found house loud mount mountain about account around council count discount 句子 There is an owl. I like sour cream. The town is crowded. We’ve found some flour The flowers are in the house. 同音 [aʊ] hour our foul fowl flower flour bough bow aloud allowed council counsel 辨音 [aʊ] [əʊ] now know town tone loud load clown clone drown drone couch coach noun known