单词：be castrated
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单词：be castrated 相关文章
Most people have two copies of a gene that enables them to detect a steroidal pheromone called androstenonewhich is found in male mammals, particularly porkers. But most pigs in developed countries have been chemically castrated. Which means much les
发表于:2019-01-08 / 阅读(162) / 评论(0)
Scientific American(五)月
Scientific American(五)月