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老鼠,这个与人类如影随形的同居者和危险的敌人,出现在地球上已有四千万年的历史。据有关资料显示:全世界的老鼠约有四十多亿只,几乎和地球
The mouse, a cohabiting human beings and dangerous enemy, appeared on Earth 40 million years ago. According to relevant information, there are about 4 billion mice in the world, almost all of them