vo:how are you?
me:fine, thank you, and you?
vo:are you studying in Nanjing?
me:yes, Nanjing Univeristy.
vo:.....give me your transcript.
me:（拿出两个信封）may I open them for you?
vo:only graduate transcript, not undergraduate transcript(就是这个意思吧，具
体怎么说得记不清了）
me: I see, here you are.
vo:what is your graduate project?
me:bababa......
vo:I don't know it..
me:bababa......(又说了一遍，并且放慢了说话的速度，但是只说了一半就被打断了）
vo:I don't know it, what is the means of purification?
me:you know the serum is mixture, so we try to purify IgM from it.(事先准备了
很多专业词汇，就是没有准备这个purification，看来还是有疏忽的）
vo:I ask you what is the english means of purify.
me:It means we seperate the mixture, and get the part we want(又在瞎说了）
下面就看见vo在DS表上写，看见他在issue visa的yes上划了圈，并且签了名，就觉得挺
开心的了。
vo:......window 11.....study in USA....（给了那本小书）
me: thank you!