每次测试之后，测试程序都会恢复到初始的状态，这就会在测试用例运行期间清除所有创建的测试数据。
After every test case, the application under test is restored to its initial state, which involves cleaning up the test data created during the test case run.
它把所有数据存储在芯片中，可以在发生错误时恢复以前的状态。
Essentially, it stores all the data in the chip and reverts back in case of a prior error.
当电脑重新启动时，所有未关闭的程序和文件都会恢复到原来的状态。
When the computer restarts, all open programs and files are restored just as you left them.
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