每日背誦第一期31
Thomas Edison's first invention was the automatic telegraph repeater. He was already an expert on the telegraph before he came up with a gadget that sent telegraph signals between unmanned stations. Thanks to Edison, people were then able to send several telegraph messages simultaneously.
電報(bào)自動(dòng)轉(zhuǎn)發(fā)器是托馬斯·愛迪生的第一個(gè)發(fā)明。他發(fā)明的這種裝置，用于在無人看管的兩站之間傳輸電報(bào)信號(hào)，在此項(xiàng)發(fā)明前，愛迪生就已經(jīng)是位電報(bào)專家了。幸虧有愛迪生，我們才能在同一時(shí)間傳送好幾封電報(bào)訊息。
