To me, unit tests are fast running tests that typically test individual classes that don't have heavy external dependencies like databases.

对我来说，单元测试是快速运行的 测试，通常测试没有大的外部依赖项（如数据库）的单独的类。

youdao

This feature gives you a succinct way to express a set of examples to be used in running individual test cases.

该特性提供了一个简洁的方法，用之表述一组实例，以在运行中的单个测试用例中使用。

youdao

While individual x86 machines are often fairly stable when running for a year or more at a time, other systems may be somewhat better engineered to stand the test of constant operation.

虽然单独的x86机器通常相当稳定，可以一次运行一年或更长时间，但是其他系统可能设计得更好，能够承受持续操作的测试。

youdao