regression testing

• 回归测试

regression testing的用法和样例：

例句

1. Removing tests from a regression test suite just because they don't add coverage.
   因为有些测试不能增加覆盖率而将它们从回归测试套件中去掉。
2. Regression testing is most often used in testing maintenance to existing programs.
   回归测试最常用在已有测试的测试维护。