It is also of concern that the misguided advice that students should speak only English is given primarily to poor families with limited educational opportunities, not to wealthier families who have many educational advantages.
出自-2013年12月阅读原文
Newly developing countries that are beginning to industrialise, primarily in Africa, with high to very high population growth rates, and characterised by a predominantly young age profile
出自-2013年12月阅读原文
In less-developed countries, such as those of sub-Saharan Africa and South-East Asia, wastage tends to occur primarily at the farmer-producer end of the supply chain.
出自-2013年12月阅读原文