例句：

　　Our knowledge of universe is growing all the time.

　　我们有关宇宙的知识一直在增加。

　　I've been thinking about it all the time.

　　我一直都在思考这件事。

　　A:My brother was beaten by his classmates last week, and I couldn't believe that the teacher pretended that he didn't know anything.

　　我弟弟上周被他同学打了，我不敢相信老师居然假装什么都不知道。

　　B:In fact, I bet this happens all the time, because the teacher doesn't want to look for trouble.

　　其实，我打赌这种情况一直都有，因为老师不想自找麻烦。

　　背景音乐：

　　Chris Rene-Young Homie