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物理课上,老师正手拿一个鸡蛋给同学们讲授力学。他说,把一个鸡蛋放在一只手的手心里,如果不用指甲抠,任凭你的力气再大,也无法将这个鸡蛋握碎。
Physics class, the teacher is holding an egg to teach students mechanics. He said putting an egg in the palm of one hand could not hold the egg without breaking it with your fingernails.