在一次学校组织的外出活动中，当老师向彼得和他的同学们做有关蜘蛛的科学演示时，彼得被一只基因变异的蜘蛛咬了一口。
On a school trip, during which Peter and his classmates are given a science demonstration on spiders, Peter is bitten by a genetically altered spider.
在一次学校组织的外出活动中，当老师向彼得和他的同学们做有关蜘蛛的科学演示时，彼得被一只基因变异的蜘蛛咬了一口。
On a school trip, during which Peter and his classmates are given a science demonstration on spiders, Peter is bitten by a genetically altered spider.
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