https://online2.tingclass.net/lesson/shi0529/0009/9907/112.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
casual 非正式的，隨意的，休閑的，輕松的
When I don't work, I like to wear casual clothes.
不工作的時候，我喜歡穿的休閑一些。
Business casual is the dress code at my office.
我們辦公室的著裝要求是商務(wù)休閑。
It's difficult for me to be casual about that.
要我輕松面對那件事很難。
瘋狂練習(xí)吧!
