Alexander Graham Bell什么意思？

Alexander Graham Bell was the inventor of the telephone.亚·格·贝尔是电话的发明人.Alexander Graham Bell invented the telephone in 1876.一八七六年阿历山大·格雷厄姆·贝尔发明了电话.Alexander Graham Bell always lived by the philosophy that when one door cl...

Alexander Graham Bell的音标：...