We are worried because we do not know how long they will stay or how we will take care of them.

VOA: standard.2009.10.27

and they get to know you and maybe assess how good you will be in the lab, so I think,

了解你，评估你在实验室里怎么样，所以我觉得，

要考入大学 - SpeakingMax英语口语达人