study very hard

基本解释

I study very hard every day.
我每天都很用功念书。
He keeps his grandson shut up, when he isn't riding or walking with his tutor, and makes him study very hard.
他把自己的孩子关在家里，只让他跟着家庭教师骑马散步，逼他用功读书。
Those students study very hard.
那些学生学习非常努力。
360edu.com

Many parents push their children very hard to study these days.
现在很多父母都强迫自己的孩子努力学习。
学习靠自觉 - SpeakingMax英语口语达人

Gabby is someone who has obviously made a very careful study of what makes her happy, and worked hard to bring those elements into the forefront of her life, so I was curious to hear what she had to say on the subject of happiness.
FORBES: How Would I Behave If I Were Happy
Researchers at academic medical centers who study the disease say that so-called chronic Lyme, or post-Lyme, is very rare, hard to detect and not treatable with any further doses of antibiotics.
FORBES: Lyme Inc.