In wealthy societies, the logic often reverses.
出自-2013年12月阅读原文
Why do people in wealthy countries prefer to have fewer children
出自-2013年12月阅读原文
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