Primary education lasts for four years preceded by one year of pre-school education.

初等教育为四年，之前有一年的学前教育。

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He says over the next six months, UNICEF plans to support the repair and renovation of around 1, 000 primary schools and 400 pre-school facilities.

他表示，在接下来的6个月里，联合国儿童基金会计划为大约1千所小学和400所学前设施提供修复帮助。

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The primary factors affecting the structure and properties of the resulted fibers during pre-oxidation included pre-oxidation temperature and time and draw ratio.

指出预氧化过程中影响纤维结构与性能变化的主要因素有预氧化温度、预氧化时间和对纤维的拉伸倍数等。

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Projections from exit polls also take into account the consistency between exit poll results and pre-primary polls.

CNN: How does CNN make primary projections?

Enrolment in pre-primary, secondary and tertiary education has also grown by more than 60% during the same period.

UNESCO: EDUCATION

Most commonly collected data are limited to health outcomes for children ages 0-3 and pre-primary and primary education indicators for older children.

UNESCO: EDUCATION