最后让我们一起来欣赏英语大课间的歌曲吧。

So much for today. At last, let's enjoy a English song.

运用文献资料、问卷调查、专家访谈法等方法，对天津市中小学大课间体育活动进行研究。

Through using the method of literature review, questionnaire and expert interview, this paper makes investigation on sports activity during a break around primary and secondary schools in Tianjin.