1·Solving the Expression Problem makes it possible to extend preexisting types to new methods and extend preexisting methods to new types, all without recompiling existing code.
解决表达式问题使将先前存在的类型扩展到新方法成为可能，所有这些都不重新编译现有代码。
2·It allows the changing of source code during a debugger session, which is better than exiting the application, changing the code, recompiling, then starting another debugging session.
该功能允许在调试器会话中改变源代码，这比退出应用程序、更改代码、重新编译、然后启动另一个调试会话更好。
3·After all the design, code generation or recompiling, and performance tuning, the next critical step to deploying a complex application is that a benchmark phase occur.
在完成所有的设计、代码生成或者重新编译、性能优化之后，部署复杂应用程序的一个关键步骤是进行基准测试。
4·Thus, changing from a queue to a topic involved recoding, recompiling, and redeploying the application.
因而，从队列到主题的更改涉及重新编码、重新编译和重新部署应用程序。
5·Now, I can easily make changes to named queries without changing my source code and recompiling.
现在，我可以方便地对命名查询进行更改，而无需更改源代码和重新编译。