[ʌ] [ɑ]的区别:

[ʌ]: 舌中部抬起

[ɑ]: 舌后部抬起

cup cop

hut hot

nut not

[ɛ]和[ɪ]的区别：

[ɛ]：食指音，上下齿之间的距离放一根食指的距离

[ɪ]：小拇指音，上下齿之间的距离放小拇指指尖的距离

mess miss

set sit

sex six

t的弹舌：

2元间

非重读/词末

city, beautiful, later

Get up

Let it go.

What is it?