Vowel-3.Long Vowel【u:】

发音 双唇向前突出 舌尖不触下齿 发长音 单词 do two who cool fool tool blue glue true fruit juice suit lose move shoe food moon soon group soup you include June rule blew drew threw improve prove remove 句子 The boy threw the tool. There are two blue suits. You should put on shoes. The moon is coming soon. We should improve food quality. 同音 [u:] flew flu blew blue few phew root route too two knew new cue queue who’s whose threw through chews choose 辩音 [u:] [u] fool full pool pull stewed stood kook cook