而在云中，因为虚拟机器是自动运行的，常法已行不通了。

With virtual machines running autonomously in the cloud, that is out of the question.

youdao

注意，TestRunner并非运行单一测试或测试套件的惟一方法。

Note that TestRunner is not the only way to run a single test or a test suite.

youdao

不过，对测定目标物距离来说，声波运行的速度太慢，因此，声波回声测距法在实用中有其局限性。

Thus this soundwave echo method has its limitation in practical use.

youdao