就像前面所述的那样，一个程序可以通过动态链接很方便的实现模块化。
As described in previous sections, the overall modularity of a program can benefit from dynamic linking.
动态链接让您构建的程序能够在更大范围内的系统上运行。
Dynamic linking allows you to build a program that will run on a much broader variety of systems.
Linux将缓存动态链接的程序的位置信息，以提高性能。
Linux caches library location information for dynamically linked programs to improve performance.
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