- 问题详情:Ifyouareafraidofthedark,it’snotabigdeal.It’sperfectlynormaltofeelafraidAfterall,animalsdotoo.“Fearmatters,”saysKarenWarkentin,anecologist.“It’sagoodthing,”sheadds,“becausefearmakesyoudothingsthatkeepyoualive.” Likekids,manyanimalsexperi...
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