中国或在研世界首款五代空空导弹 装备歼20

中国Don’t stop when you’re tired. Stop when you’re done.

研世You don’t have to be great to start, but you have to start to be great.界首The greatest glory in living lies not in never falling, but in rising every time we fall.

款空导Don't wait. The time will never be just right.代空弹装The key to success is to focus on goals, not obstacles.备歼It’s going to be hard, but hard does not mean impossible.

中国Believe you can and you're halfway there.研世Great things never come from comfort zones.

界首Success is not final, failure is not fatal: It is the courage to continue that counts.

款空导The only way to do great work is to love what you do.代空弹装The only way to do great work is to love what you do.

备歼Your limitation—it’s only your imagination.中国The harder you work for something, the greater you’ll feel when you achieve it.

研世It’s going to be hard, but hard does not mean impossible.界首Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.

(责任编辑：舒鸣)