Recently,the television cable network C-Span carried out its second study about the greatest American presidents.

VOA: special.2009.02.27

who have like a series of um, kind of network events where they tell you about the company and then,

有一连串的交流会议，，用于介绍他们的公司，

实习生到正式员工 - SpeakingMax英语口语达人