Cochlear implants, so that's the same kind of function as a hearing aid, to improve hearing, but using a different mechanism.

人工耳蜗移植术,人工耳蜗与助听器同作用相同,都可以改善听力,只是两者原理不同

耶鲁公开课 - 生物医学工程探索课程节选

So, you say to your roommate because you want the house to be clean and things to change.

为了屋子变得整洁，情况有所改善，你可以跟你的室友说，

I'm afraid of 课堂 - SpeakingMax英语口语达人

Perhaps you are a little bit more optimistic, a little bit more utopian-- human nature can be improved.

也许你更乐观，更加乐天，人性可以改善。

哈佛公开课 - 幸福课课程节选

Then you could also think about whether there are changes that could be made to improve diet.

然后,你也可以想想是能否做些改变,来改善食谱

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

and it actually enhances the educational environment. I tend to disagree.

因为这其实可以帮助改善教育环境。不过我不同意。

反对体罚 - SpeakingMax英语口语达人