https://online2.tingclass.net/lesson/shi0529/0009/9907/529.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
have a lot on one's mind 有事在心上，有很多煩心事
You look like you have a lot on your mind.
你看起來有很多心事啊。
I know you have a lot on your mind, but we still have work to do.
我知道你有很多煩心事，但我們還有許多工作要做。
瘋狂練習(xí)吧!
