你不必努力地学习，去弄清楚这些不同面部表情的含义。

You don't have to work very hard to figure out what these different facial expressions mean.

youdao

现在，我对所有的科目都感兴趣，并且非常努力地学习它们。

Now, I am interested in all the subjects and work very hard to learn them well.

youdao

下定决心更加努力地学习。

Make up your mind to study harder.

youdao

You don't have to work very hard to figure out what these different facial expressions mean.

你不必努力地去学习,去辨析不同面部表情的含义。

耶鲁公开课 - 心理学导论课程节选

I've been studying really hard, but I just don't get it.

我一直很努力地学习，但总是学不好。

I'm worried 实战 - SpeakingMax英语口语达人

and she had really been struggling with it.

她真的一直很努力地在学习。

和钢琴老师 - SpeakingMax英语口语达人