Vo : ok , who is your advisor there ?

签证官：你那里的导师是谁？

Kathleen ( vo ) : I know what you mean and I 'm completely jealous .

凯（话外音）：我知道你的意思，我十分嫉妒你。

During the positive-going portion of the input signal , the follower tracks the input voltage so that vo = v in .

在输入信号的正向段，跟随器跟踪输入电压，所以vo=vin。

Vo : how long have you know each other ?

签证官：你们认识多久了？

Vo : when did you get married ?

签证官：你什么时候解早婚的？