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       231.The discipline of his early hardships contr123ted to his cuccess.

　　232.Because of advances in medical technology,heart surgery is not as risky as it formorly was.

　　233.She took the initiative in getting acquainted with sb.

　　234.She has supersition that breaking a mirror brings bad luck.

　　235.This one would be even more demanding. 要求更高

　　236.bring many benefits and conveniences to people

　　237.The establish of more courses that are contr123tory to the shaping of a sound psychology for students in high school derives form the current social demand.

　　238.The evcr-increasing improvement in all the realms of human life has necessitated the priority particitation of those who are in possession of adequate expertise, upright conduct and a competent mental condtion.

　　239.be beneficial to both A and to society as a whole

　　240.enable sb to stand the sundry emotional social strains

   　241.exert a huge influence upon...

　　242.when the naivety of childhood is left behind and maturity of adulthood is embraced

　　243.A is only the preliminary stage in the process of growing up.

　　244.Sport is an important part of modern life as well as a commercialized part of modern society.

　　245.People engage in sports because they want good health.

　　246.They sacrifice too much.

　　247.It's not unreasonable that.... ...不无道理

　　248.Sb should be more supportive of..

　　249.It's a fact that traditional culture is undergoing a decline with the development of science and technology.

      250.It's human nature to continually look for new ways to replace old ones.