America should become an object of explicit o ervation ( not thoughtle imitation ) while china remai a topic of concern and memory 美国应该成为一个可看可摸的观察对象（而不是不加思考的模仿） ，而中国则应成为时时关心与回忆的话题。
2.
The fundamental basis of our o ervation is that : the formal methods designed for optimizing compilers a ume that the compiler and the programmer are allies 我们观察问题的基本角度是：为最优化编译器设计的形式方法它假定编译器和程序设计者是盟友。
