发音标:发音标[u]和[u:]的单词有哪些?发[u]的单词要含有o 发[u:]的单词要含有ou或u请三种单词各写4个

问题描述:

发音标:发音标[u]和[u:]的单词有哪些?
发[u]的单词要含有o 发[u:]的单词要含有ou或u
请三种单词各写4个

book look cook good
through louvar louver boubou
blue glue slue flu

wolf wolfish woman womanish
group wound ruler blue