原始文本 - 英语 - Dad what do you think is the most important...

Dad what do you think is the most important development of the last centuries?

Ah paper!I think paper is the most important development of the last centuries.By the helf of paper,people had chance to record ideas and communicate knowtedge through time and space 5.00 years ago it was the cheapest and the most flexible means of recording.

Well . . . I agree with you honey but when I think of my situation.I can say the automatic washing machine is the most useful device of the last centuries because it helps working women a lot.You know it is a woman’s best friend.