如果教师不知道哪个终端模拟器窗口与该学员对应，可以要求学员输入特定形式的关键字，然后查看哪个窗口显示了该关键字。
If the instructor does not know which terminal emulator window corresponds to the student, he or she can ask the student to enter a keyword on a particular form and see which window displays it.
如果学员练习时发现问题，教师可以通过查看相应的终端模拟器了解学员的操作。
If a student has a question during an exercise, the instructor can look at the proper terminal emulator to see what the student is doing.
比如，一名飞行教官可以测试飞行模拟游戏，一名会计师可以测试税务软件，一名教师可以测试一个新的教育软件。
For example, a flight instructor could test a flight simulator game, an accountant could test tax preparation software, or a teacher could test a new child education program.
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