以下是引用qww在2004-1-3 22:02:00的发言: 14.Comparisons of the average standards of living of the citizens of two countries should reflect the citizens’ comparative access to goods and services这是结论。注Reliable figures in a country’s own currency for the average income of its citizens are easily obtained意这里用的前提是比较获得的商品和服务。Reliable figures in a country’s own currency for the average income of its citizens are easily obtained。指出收入的数字有了。但是总结论是很难比较the average standards of living of the citizens of two countries 。那么原因是购买这一环节很难比较。收入---购买----商品和服务。中间链条有问题。
14. "standards of living" is diferent from "quality of life". The first one means the level of comfort and wealth which you have. But the second one means how good or bad of life.
Children who contract measles develop an immunity to the virus that causes Peterson’s disease. C的意思是说,得过M的孩子会产生对P的免疫;现在得M的孩子少了,那么,能够产生对P的免疫的孩子也少了,那么得P的孩子就多了。