But now, I have to study and use it.

但现在，我不得不去学习和使用它。

youdao

The study and use of plants for medicinal purposes is the concern of herbalism.

植物药用的研究与应用主要是草药学关注的焦点。

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For instance, the use of raised toilet seats has more than doubled since the start of the study, and the use of bath seats has grown by more than 50%.

例如，自研究开始，高架马桶座圈的使用增加了一倍以上，而浴缸座圈的使用增加了50%以上。

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We will also tell about a study of young Americans and their use of social Web sites on the Internet.

VOA: special.2009.02.03

Raul, there was recently a study done about cell phone use by a driver when people are driving a car, and there was a debate whether that should be banned.

劳尔，最近有一项,关于司机开车时使用手机的研究，关于是否应该禁止此行为，有一场争论。

耶鲁公开课 - 公正课程节选

In this mode either the students can self-study, Work on their own, or often Prof. Perdue will use These materials in the classroom and use them to Launch a larger discussion about what the students understand from these materials.

在这种模式下，学生可以自学，或者Peter，Perdue教授也经常拿这些,当作课堂讨论的材料,激发大家的讨论,看学生从中学到了什么。

麻省理工公开课 - 媒体、教育、市场课程节选

Making stem cell therapy a mainstay will take years of research, complicated by the trickiness of harvesting the elusive cells for study and use.

FORBES: Cell makers

Many who earn these U.S. dollars use them to travel to America and study the refining and use of vibranium in the States.

FORBES: Is 95% of the Trade Imbalance Legal Tax Evasion?

So why not just ignore that study, and use instead the other, equally reputable one, which imputes no harm to knocking back these pills that stave off osteoporosis?

FORBES: What Did You Know, and When Did You Stop Knowing It?