...在虚拟环境中的活动或者经历有两种形式，一种是主观参与(First-person activities)，另一种是客观参与(Second-person activities)主观参与时，参与者是整个经历的中心，一切围绕参与者进行；客观参与时参与者则可以在虚拟环境中看到他自己与其它物体的交互
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每隔一小时测量一次参与者的客观警觉性，心理动作警觉作业测试与清醒度维持测试交换进行。
Objective alertness was measured by hourly testing, alternating the PVT with the Maintenance of Wakefulness test (MWT).
要提高客观性，建议增加参与者，以便他们从组织内的不同角度进行评估。
The recommendation for increasing objectivity is to include a number of participants who provide input from different vantage points within the organization.
负责的、有效的文学翻译批评应该是客观的、辨证的和动态的。要达到这种目的就离不开读者的参与。
Responsible and efficient literary translation criticism should be objective, dialectic and dynamic, but this aim will never be fully achieved if the reader's participation is ignored.
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