21. 责任感 / 成就感 sense of responsibility / achievement
22. 竞争与合作精神 sense of competition and cooperation
23. 开阔眼界 widen one's horizon / broaden one's vision
24. 学习知识和技能 acquire knowledge and skills
25. 经济/心理负担 financial burden / psychological burden
26. 考虑到诸多因素 take many factors into consideration
27. 从另一个角度 from another perspective
28. 做出共同努力 make joint efforts
29. 对…有益 be beneficial to / be conducive to…
30. 为社会做贡献 make contributions to the society