英语口语公益训练营第25天Day 25

英语口语公益训练营第25天Day 25

2017-09-11    07'46''

主播: 维多利亚双语电台

928 14

介绍:
25. What purpose does it serve Why are you taking vitamin C all day long ? These are really good when you’re sick What purpose do they serve ? They help strengthen your immune system