PROFESSOR 2: -- other, it could have said - who or zort or -- PROFESSOR: Yeah, sorry, that was part of the question, I could have a picked foobar could put anything in here.

教授2：另外一个对象？,这可以说是其他对象或者-,教授：对，很抱歉，这是问题的一部分，我可以写一个,可以放进任何东西的代用符。

麻省理工公开课 - 计算机科学及编程导论课程节选