And this is a picture from emersion week-- emersion week is when the very first time students meet together that for 5 days to Penn.

这是一张开学周的照片-,开学周时，同学初次见面,他们来宾州五天。

哈佛公开课 - 幸福课课程节选

you know, just for a little exercise, because I'm sitting in a cab 4 or 5 days a week.

做点运动，因为我一周四、五天都是在驾驶室里坐着。

愉快的音乐庆典 - SpeakingMax英语口语达人