每日一句口语：
Don't worry about what others doing better than you. Concentrate on beating your own records every ess is a battle between YOU and yourself only.
与其担心别人做得比你好，不如关注自己怎样才能一天天做得更好。成功是一场和自己的比赛。
【知识点讲解】
Concentrate on 集中于； 专心于
例句：It's too hot to concentrate on book.热得不能集中心思看书。
