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 one‘s knowledge
　　widen one‘s horizons
　　cultivate/foster
　　one‘s 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 people‘s health
　　do damage to
　　incur
　　to sum up/in general/on the whole/
　　in this sense/in conclusion
　　enter an era/age of information/technology
　　serious/pressing/prominent/acute problem
　　confront/face sb./sth.
　　There are also/also exist some pressing problems confronting us/which confront us.
　　=However，we are also confronted/faced with some serious problems，one of which is traffic problem.
　　realize/be aware/conscious of the seriousness of the issue
　　In this essay，I will concentrate on/focus on/dwell on/explore the causes of this problem and find out effective solutions to it.
　　cause/factor of
　　solution/suggestion
　　contribute to
　　The rapid increase of vehicles contributes mainly to the traffic issue.
　　account for占据/解释…的原因
　　environment
　　juvenile delinquency
　　pay sufficient/adequate attention to/
　　lay emphasis on/ pay heed to
　　law/regulation
　　prohibit/forbid/ban/restrain
　　influence/affect effect
　　have negative/positive effects on
　　raise/enhance/promote the awareness of
　　crack down on/upon（对…严加处置或限制） crimes
　　join hands in doing=join hands to do
　　make joint efforts to do/
　　do one‘s utmost to do…
　　put emphasis on sth.=give priority to
　　eliminate/eradicate/get rid of illiteracy/poverty
　　solve/handle/tackle/deal with/cope with
　　explore the issue from diverse perspectives
　　effective/ efficient/ constructive countermeasure
　　city dwellers = citizens
　　college graduates
　　in the colleges = on college campuses
　　proper = appropriate
　　lack
　　He lacks experience.
　　For lack of experience， he was fired.
　　as = since = now that = in that
　　so = as such， = consequently， = as a result，
　　Every metal has its reverse.
　　pros and cons
　　advocate
　　believe = assert = argue = contend = insist = demonstrate = illustrate = hold = hold the opinion that… = be of the opinion that…
　　be popular = be pervasive = gain the popularity
　　on one hand， …… on the other hand.= for one thing， …… for another，
　　to begin with，= in the first place，= first and foremost
　　what‘s else，= what’s more，= in addition，= at the second thought，
　　last but not least，
　　frankly speaking，= generally speaking，= directly speaking，directly or indirectly，= ，one way or another，
　　I will，directly or indirectly，explore the issue.
　　hold water
　　direction = compass
　　a hard issue to solve = a hard nut to crack