Right now it's got that second key word there called pass, which is just Python's way of saying there's an empty body in here.

现在我在完善它的一个简单部分,但是首先，类是用来干什么的呢？,把类认为是可以创建一个。

麻省理工公开课 - 计算机科学及编程导论课程节选

A word about grades-- you may in fact take this course pass-fail.

关于分数我有两句话要说，这门课只分及格和不及格两种。

哈佛公开课 - 计算机科学课程节选