为什么：这个问题有争议性，她可能不想公开讨论她的决定。
Why: The issue can be controversial, and she may not want to discuss her decision publicly.
目前顿悟问题解决的心理机制主要存在两个有争议性的理论：进程监控理论和表征变化理论。
At present, psychologists often discuss about two theories of the mechanism on insight problem solving: progress monitoring theory and representational change theory.
这项突破传统的变革并不令人惊讶，因为荷兰很久以来就是处理有争议性社会问题的先锋，如毒品与安乐死等等。
This break with convention is not surprising since the Netherlands has been a pioneer in dealing with controversial social issues like drug use and euthanasia.
机构不再采取有争议性的行为，在多大程度上是为避免起诉所引起的花费与拖延，也是不可能弄清楚的一个问题。
It is also impossible to know the extent to which agencies have refrained from taking controversial actions because of the desire to avoid the expense and delay of NEPA litigation.
机构不再采取有争议性的行为，在多大程度上是为避免起诉所引起的花费与拖延，也是不可能弄清楚的一个问题。
It is also impossible to know the extent to which agencies have refrained from taking controversial actions because of the desire to avoid the expense and delay of NEPA litigation.
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