英語連詞前面的逗號(hào)有什么用?.,and.
舉個(gè)例子：
1 Children will play with dolls equipped with personality chips,computers with in-built personalities will be regarded as workmates rather than tools,relaxation will be in front of smell-television,and digital age will have arrived.
2.In Europe,as elsewhere,multi-media groups have been increasingly successful:groups which bring together television,radio newspapers,magazines and publishing houses that work in relation to one another.
1.中的.......and digital 中的magazines and publishing 有什么區(qū)別？和區(qū)別的竅門？