常见例句Already in the 1800's, Sir William Thomson and professor Hugh Blackburn experimented by rotating eggshaped stones found on the beach. 十八世纪时，SirWilliamThomson与HughBlackburn教授，经过对沙滩上旋转的鸡蛋形石头的实验，他们发现与神奇陀螺的特性类似。 返回 eggshaped