1. Carver Mead, a pioneer in integrated circuits and a professor of computer science at the California Institute of Technology,
    卡弗.米德 -- 集成电路的一位先驱，加州理工学院的计算机教授

2. Unfortunately, the professor appeared and the class began.
    令人遗憾的是这时教授进来了，开始上课了。