Sure you might find a better product or price if you look at 50 options, but when you factor in the time and energy that would take, it's probably not such a value.
当然如果你考虑50个选项，可能会发现更好的产品或价格，但是当你把可能要花费的时间和精力计算在内，它大概不是这个价值。
Timer is an instance of CSTimer, which is set to trigger every five seconds, at which time the device will double the current value of the multiplying factor.
timer是CSTimer的实例，它被设置成每5秒触发一次，每次触发时，设备会把乘数的当前值加倍。
By using principle factor analysis, four dimensions were identified. They are the sense of time efficacy, the sense of time value, initiative in time using and time management strategy.
通过主成分分析法，确定出大学生时间管理倾向的四个构成维度，分别为时间效能感、时间价值感、利用时间的主动性和时间管理策略。
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