He claims to be studying and learning rather than producing right now; and there's a problem with just studying and learning, and it's a problem that Milton can't avoid.

他坚持学习而不是创作;,但这种单纯地学习存在一个问题，这是个弥尔顿无法回避的问题。

耶鲁公开课 - 弥尔顿课程节选

But it's difficult, because you have to go there like four or five times a week.

但是要坚持学习真实太难了，你一周得去四、五次。

I used to实战 - SpeakingMax英语口语达人

Congratulations, a lot of people put in the effort and there is some learning going on.

恭喜你们，有许多人花了很多精力,一直坚持学习。

麻省理工公开课 - 固态化学导论课程节选