laid-back 悠闲的，懒散的，自在的，从容不迫

　　Why are you so laid-back? The exam is in 30 minutes!

　　你怎么还是这么闲散？考试30分钟之后就要开始了！

　　Everyone here has a really laid-back attitude.

　　这里的每个人都是一副优哉游哉的态度。

　　疯狂练习吧！