至于控制，Chatroulette可以很好地模拟在大街上遇到陌生人的情景。
As to control, Chatroulette can well imitate an act of meeting strangers on the street.
在以下两种情景中处理控制及测量的定义是有用的。
It is useful to address controls and the definition of measures in two contexts.
那些在面对压力情景会小小发作或者生气的人，实际上拥有一种控制感和乐观精神，这是那些在同样情形下感到害怕的人所没有的。
People who respond to stressful situations with short-term anger or indignation have a sense of control and optimism that lacks in those who respond with fear.
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