Satisfaction degree of volunteers, are the margins between actual perceptions and expectations of the work of volunteer service on some major sports events.

志愿者满意度，是志愿者对大型体育赛事志愿服务工作的实际感知和期望之间的差值。

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These perceptions are learned over time, and they create powerful expectations that can lead individuals to act in ways that, to the outside world, suggest insolence, laziness, pathology, etc.

这些体察是长期习得的，又反过来创造了强大的预期期望，引导个体做出这样的行为，而外部世界却视之为傲慢无礼、懒惰、病态等等。

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Service quality depends on the difference between customers' expectations and perceptions of the service.

服务质量水平是由顾客对服务的期望和感知之间的差异决定的。

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"I've always been more drawn to things that enable me to challenge people's perceptions and expectations, " she says.

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However, the price at which they can sell that asset in the future depends entirely on the perceptions and expectations of other people , which may depend further on those of others in the future.

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Traders pushed prices up on their perceptions of geopolitical risk and the pricing in of easing expectations.

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