Ifyouareafraidofthedark，it’snotabigdeal．It’sperfectlyno...
问题详情：Ifyouareafraidofthedark，it’snotabigdeal．It’sperfectlynormaltofeelafraidAfterall，animalsdotoo.“Fearmatters，”saysKarenWarkentin，anecologist．“It’sagoodthing，”sheadds,“becausefearmakesyoudothings...