（Circumstances vary between countries and between schools within a country, and implementation factors have therefore to be taken into account when designing ICT curricula.
（Circumstances vary between countries and between schools within a country, and implementation factors have therefore to be taken into account when designing ICT curricula.
各国之间以及一个国家的不同各校之间的情况千差万别，因此设计信息与通信技术课程时必须考虑课程实施的因素。