Li Bai suddenly understood the importance of hard work, and he started to work hard at school.

李白突然明白了努力学习的重要性，他开始在学校努力学习。

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My parents have always told me how important it is to work hard at school and enter university.

父母一直告诫我在学校好好学习上大学是多么重要。

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Work hard at school!

在学校努力学习！

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Beijing is the great crucible of social reinvention, and every child learns that hard work at school is a potential escape route from poverty.

BBC: A Beijing state of mind

With the mission of using service as a tool to strengthen bodies, empower minds, and build communities, The Campus Kitchens Project (CKP) is a student-powered hunger relief organization hard at work on 31 high school and college campuses.

WHITEHOUSE: Service as a Life and Legacy

"I don't take schoolwork with me when I travel -- I just work very hard when I'm at school in Guangzhou, " he said.

CNN: Chinese golfer, 13, to make European Tour history