有一次,奶奶拿出了一个生鸡蛋,叫我用力捏,我使了好大劲,试了好几遍,怎么也捏不碎。我着急地问奶奶:“为什么我捏不碎它?”奶奶认真地说:“因为鸡蛋是圆形的,你捏它时,它表面各部分所受的力量相等,所以捏不碎。要记住:圆形物体不易被损坏。”还有一次奶奶做饭,刚把油倒在大勺里 Once, my grandmother took out a raw egg, told me to force pinch, I made a great effort, tried several times, how also pinch broken. I was anxiously asking my grandmother, “Why do I pinch it?” Grandma said seriously: “Because the egg is round, when you pinch it, the strength of each part of it is equal, so it is not broken. Live: Round objects are not easily damaged. ”There is another grandmother cooking, just pour the oil in a large spoon