The UN Children's Fund estimates that nearly 72 million children of primary school age were not enrolled in school in 2007.

VOA: standard.2010.05.19

Those in the state sector, you would start primary school,

那些在公立学校的孩子们，会开始读小学，

英国的教育 - SpeakingMax英语口语达人

At the week-long conference, participants are focusing on three primary roadblocks to getting and keeping girls in school: violence,poverty and the poor quality of education being offered.

VOA: standard.2010.05.19