In Australia, each state and territory has its own primary and secondary education system.

在澳大利亚，每一个州和地区有他们自己的小学和中学教育体系。

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Most switches that support a VIP can also support a policy of primary system or secondary system, so that traffic goes to the primary system unless it is unavailable or fails the validation.

大部分支持VIP的交换机也能支持主用系统或备用系统的策略，以便流量跑到主用系统那里，除非它不可用或验证失败。

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Asynchronous availability does not guarantee that primary and secondary system databases are completely synchronized.

而异步可用性则不保证主系统和辅助系统是完全同步的。

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In 2009,Sierra Leone President Ernest Bai Koroma launched a review of the education system following abysmal exam results at both the primary and secondary level.

VOA: standard.2010.02.25

It is part of a plan for a two-tier primary and secondary school system in the county.

BBC: Norfolk schools close in education shake-up

In its School Organisation Review, Suffolk County Council is replacing the three-tier system of primary, middle and secondary schools with the two-tier system which cuts out the 40 middle schools.

BBC: Suffolk's middle schools closure programme starts

In April 2005, the council agreed in principle to change from the current system of first, middle and high schools to a system of primary and secondary schools.

BBC: NEWS | UK | England | Tyne | School shake-up talks to continue