Definition: with a lot of physical or mental effort Level: A1
她非常努力地尝试了，但她不够快。
She tried very ___hard but she wasn't quite fast enough.
如果你想通过这门课，你就必须更加努力。
You'll have to work ___harder if you want to pass this class.
我不喜欢在教室里非常努力地工作。
I don't like to work very ___hard in the classroom.
