However, each distribution's definition of core could vary slightly, which means that regression testing is always necessary when claiming your application is supported on a given distribution.
不过，每个发行版本对核心的定义会稍有不同，这就意味着当宣称您的应用程序支持某个给定的发行版本上时，总是需要进行回归测试。
It is important to involve the users in the definition phase, design phase and in the testing of the project result.
在项目定义阶段，设计阶段，和结果测试阶段，用户的参与是很重要的。
Users are the people who will actually use the project result. It is important to involve the users in the definition phase, design phase and in the testing of the project result.
用户是工程完成后的实际使用者，让用户参与到工程的定义阶段，设计阶段和结果测试中去是很重要的一点。
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