13. 适当合理的：properly, advisable, appropriate, appropriately，reasonable,rational
14. 必要，必须的：essential， indispensable， necessary,vital,significant/significance,
15. 人的品质：honesty/honest,diligence/diligent,patience/patient,punctual / punctuality,fortitudinous,坚强fortitude
16. 学习：acquire knowledge(学习知识)/extensive knoledge(知识丰富) English proficiency，
17. living quality/standards，English proficiency
18.受到关注：be brought into focus of
19.各行各业：in all fields/walks of life
20.引起：result in, lead to, give rise to
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