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AmazonAlexa,AmazonEchoorsimplyAlexaisaassistantcreatedbyAmazon.Thefirstgeniscreatedin2014whichisthefirstmodelofthealexaThe ...,EchoisabrandofsmartspeakersdevelopedbyAmazon.Echodevicesconnecttothevoice-controlledintelligentpersonalassistantservice...。參考影片的文章的如下: