https://online2.tingclass.net/lesson/shi0529/0009/9907/695.mp3
https://image.tingclass.net/statics/js/2012
keep in shape 保持體形，保持健康，保持好的身材
Mike works out three times a week to keep in shape.
為了保持好身材我一周鍛煉三次。
Jogging everyday is how I keep in shape.
我靠每天慢跑保持身材。
