第三，用例是要运行来收集系统的执行轨迹场景的来源。

Third, the use cases are the source of scenarios to be run to gather the execution trace of the system.

youdao

虽然PHP主要是为了在浏览器中运行，但是也可以通过exec函数执行系统调用。

While PHP is mostly meant to be run inside a browser, it can also perform system calls by way of the exec function.

youdao

而且因为我们描述的是自动化测试执行系统，而不是手动系统，所以参与者仅需建立与正运行的实例的直接远程桌面协议(rdp)会话。

(And since we're describing an automated test execution system instead of a manual one, participants rarely need to establish a direct remote desktop protocol (RDP) session with running instances.)

youdao