[telegrapher]telegrapher怎么读

EDISON， Thomas Alva 1847–1931， American inventor， whose development of a practical electric light bulb， electric generating system， soundrecording device， and motion picture projector had profound effects on。

Times need heroes， and heroes stand out Franklin Roose velt is just a hero of the times Well known for his unprecedented 13 years as the President of U S ， he is regarded as a savior of America。

weeks Edison was a better telegrapher than his teacher Edison was sober and independent for his age， but hen was restless and very careless in his dress He began to wander from city to city and from job to job。