practical electric light

practical electric light practical practical electric electric electric electric practical是什么意思? Practical Teaching practical是什么意思 英语翻译Thomas Edison was a giant among inventors.He patented (取得专利权） over 1,000 inventions,including the record player,moving pictures and the first practical electric bulb.Largely home taught,Edison only went to school for three mon electric fire electric vehicles reduced electric Electric Chapel electric appliance electric咋读 英语英音 音标发音l 到底怎么发音?如：late,发音听起来像“了”,practical,听起来像“偶”.