Study very hard, master and pulp.

学习很用心，掌握精与髓；

youdao

I'll study very hard and try to improve my English.

我会很努力的读书的。提高自己的英语。

youdao

Certainly you can pass the test, but only if you study very hard.

你肯定能通过考试，但前提是你学习非常刻苦。

youdao

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.