27.同时为祖国做出贡献 contribute to his country at the same time
26.活跃起来 come to life
25.对……感到兴奋 be excited about
24.应对失败并从中吸取教训
deal with and learn from failure
23.鼓励创新,接受挑战 encourage pioneering work and accept failure
22.弄清楚 make it clear
21.发展经济实力 increase economic power
20.依靠科学技术和知识 rely on science technology and knowledge
19.对…有积极的影响 have a positive effect on
18.踏进 set foot in / on