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merit/benefit demerit/drawbacks put forward play an important/a significant role in have a profound influence/effect on have positive/negative effects along/together with the development of science and technology, as the development of science and technology accelerates, a good/large/growing/an increasing number of people explore enlarge/expand ones knowledge widen ones horizons cultivate/foster ones ability/capability/competence personality provide sb. with sth. convenient = of convenience significant = of significance nevertheless,/nonetheless,/ on the other hand for instance, take sth. as an example accelerate globalization Internet provides a convenient platform. for people to communicate directly. working efficiency impair/damage peoples health do damage to to sum up/in general/on the whole/ in this sense/in conclusion | 
