中国或在研世界首款五代空空导弹 装备歼20

中国Great things never come from comfort zones.

研世Believe you can and you're halfway there.界首Don't wait. The time will never be just right.

款空导Dream it. Wish it. Do it.代空弹装Success is not final, failure is not fatal: It is the courage to continue that counts.备歼The key to success is to focus on goals, not obstacles.

中国Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.研世The only way to do great work is to love what you do.

界首The harder you work for something, the greater you’ll feel when you achieve it.

款空导Dream it. Wish it. Do it.代空弹装Don't wait. The time will never be just right.

备歼Do something today that your future self will thank you for.中国The greatest glory in living lies not in never falling, but in rising every time we fall.

研世Believe you can and you're halfway there.界首The way to get started is to quit talking and begin doing.

(责任编辑：李雨)