And he has left blanks here, question marks here and says it is advantageous to put them in rows and to form a table.

他左边栏是空的，还有问号，他认为,将元素以行列排成一个表格是很有好处的。

麻省理工公开课 - 固态化学导论课程节选

It's simply, notice the form of it here is, it's going to take two arguments, self self is the original instance.

这很简单，注意这里的格式，它有两个参数，你说对了，是原始的实例，and，you’re，right，也就是说。

麻省理工公开课 - 计算机科学及编程导论课程节选