【21天音标学习】[ʌ][a:]

【21天音标学习】[ʌ][a:]

2017-02-18    03'22''

主播: 大本电台

146 7

介绍:
[ʌ] strut mud love blood [a:] father start hard [ʌ] I'm a blood donor [a:] It's hard to tell.