During communication, the person you are communicating with USES one of the opposite skills. Therefore, in order to understand each other, everyone must beskillfulin all four areas.
在交流的过程中，你正在交流的那个人可能正在使用一些相反的能力，所以你必须擅长这四种技能。
3
Be careful when you are dealing with a multi-thread Web application, because you need to be more skillful to make sure that locale information is accessible anywhere in the application.