For primary school students, the knowledge found in books is enough.

对于小学生来说，书本上的知识就足够了。

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It is reported that hundreds of schools in China will use the textbooks for primary and secondary school students in 2019.

据报道，2019年，中国数百所学校将在中小学生中使用该教材。

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The Youth Climate Summit, a week-long festival of climate action for primary and middle schools in the UK, starts on 9 November.

青年气候峰会将于11月9日开始，这是一个为期一周的英国中小学气候行动节。

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Earlier this year, the House of Representatives voted to prohibit widespread implementation of the technology for primary airline passenger screening.

VOA: standard.2009.12.30

When Milton instructs his muse, "Say first, for Heav'n hides nothing from thy view," there's something more here than the primary sense of the word, which is just "first in sequence."

弥尔顿写到缪斯的时候，“请先说，天界和地狱深渊在您的眼中，一切都了如指掌“,这句中“先“除了它本身的意思“最先“之外，还有其他的含义“

耶鲁公开课 - 弥尔顿课程节选

For me the absolutely shocking fact of this simile ] is that its primary purpose is merely to describe the number of angels who are prostrate on the burning lake of hell.

为了他们悲惨的境遇黯然神伤,对我来说，这个比喻令人震惊的事实,是它最初的目的只不过,是为了描述葬身于地狱火海的天使的数量之多。

耶鲁公开课 - 弥尔顿课程节选

Changing the business model for primary care medicine is a huge opportunity for healthcare cost savings.

FORBES: How Entrepreneurs Can Prosper From The Health Care Crisis

Caution should be taken in prescribing statins for primary prevention among people at low cardiovascular risk.

FORBES: Should Everyone Take Statins?

Urge Congress to make targeted cuts in funding and support spending for primary care training.

FORBES: The Bipartisan Plan To Eradicate Family Medicine