创伤事件总是导致负性的情绪记忆，比如恐惧记忆。
Traumatic events always lead to aversive emotional memory, i. e., fear memory.
负外部性是引起市场失灵的主要原因之一。
Negative externalities are one of the main reasons for market failure.
至于负性及认知的症状就没那么戏剧性，但更为恶毒。
The negative and cognitive symptoms are less dramatic but more pernicious.
主观幸福感用MUNSH的正性因子、负性因子、幸福度总分的平均值来描述。
SWB was indexed by positive factor, negative factor and total score of MUNSH.
对产品在设计上的教学有效性负主要责任。
Has primary responsibility to design an instructionally sound course.
对产品在设计上的教学有效性负主要责任。
Has primary responsibility to design an instructionally sound course.
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