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We must study hard and make progress every day.

我们必须好好学习，天天向上。

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In order to achieve our Chinese Dream, we must study and work hard.

为了实现中国梦，我们必须努力学习和工作。

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There are problem in that a horse must be treated when we study rigid bodies.

当我们学习刚体的时候,把马看做什么就是个问题了

耶鲁公开课 - 基础物理课程节选

To answer this question, we must look at the details of the study itself.

FORBES: Do Multivitamins Prevent Cancer?

' We must not allow the well-known benefits of university study to be available only to young and full-time students.

BBC: Education & Family

Part-time study is the only way many people can access higher education and we must support it.

BBC: Fall in UK university students