They help define and explain how to complete a task successfully to reach a desired outcome.

他们说明定义和说明如何完成一项任务成功达到期望的结果。

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This guarantees that eventually some progress will be made by freeing the thread for a task that might complete successfully.

这样做保证了：通过将某个线程释放给某个可能成功完成的任务，从而将最终取得某些进展。

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Once the device is turned on successfully, you can send a variety of operation commands to it (see the Schedule button commands) to complete the assigned task.

一旦设备打开成功，就可以向它发出各种操作命令(见附表的按钮命令)来完成指定的工作任务。

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At the time, he instructed them to make a boat that would float and focused on getting them to complete the task successfully.

WSJ: Data Shows Teachers Stay in Job Longer