2. 有直接/间接关系be directly / indirectly related to…

　　3. 导致很多问题give rise to / lead to / spell various problems

　　4. 可以替代think的词believe, claim, maintain, argue, insist, hold the opinion / belief / view that

　　5. 缓解压力/ 减轻负担relieve stress / burden

　　6. 优先考虑/发展… give (top) priority to sth.

　　7. 与…比较compared with…/ in comparison with

　　8. 可降解的/可分解的材料degradable / decomposable material

　　9. 代替replace / substitute / take the place of

　　10. 提供就业机会offer job opportunities

　　11. 反映了社会进步的mirror the social progress/advance

　　12. 增进相互了解enhance / promote mutual understanding

　　13. 充分利用make full use of / take advantage of

　　14. 承受更大的工作压力suffer from heavier work pressure

　　15. 保障社会稳定和繁荣guarantee the stability and prosperity of our society

　　16. 更多地强调put more emphasis on…

　　17. 适应社会发展adapt oneself to the social development

　　18. 实现梦想realize one's dream

　　19. 主要理由列举如下The main / leading reasons are listed as follows:

　　20. 我们还有很长的路要走We still have a long way to go.