We've talked about data, we've talked about operations, and we've talked about commands or statements. All right?

我们学习过操作，我们还学习过,命令或者说是声明了，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

And it's in these years after his graduation from college that Milton embarks upon what is essentially a systematic study of all available knowledge. He commands a mastery of just about the entire canon of Western literary and historical learning.

就是在他毕业后的这些年里,弥尔顿开始着手系统的学习,方方面面的知识，他想要精通,整个西方文学和历史经典。

耶鲁公开课 - 弥尔顿课程节选