这是很关键的，因为莱佩尔和格林想要观察奖励在孩子们喜欢的活动中起到什么样的作用。
It was crucial that they already liked drawing because Lepper and Greene wanted to see what effect rewards would have when children were already fond of the activity.
这篇文章描述了 C++ 可视化特性在编程和编制代码的日常活动中是怎样起到帮助的作用的。
This article describes how the C++ Visualization features can help during the day-to-day activities of programming and documenting code.
信息在商业活动中的核心的作用，使另外两项受到忽视的领导力责任更加紧迫。
The central role of information in business life has made two other much neglected leadership tasks more urgent.
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