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In the midst of winter, I found there was, within me, an invincible summer.界首Don't wait. The time will never be just right.

款空导Believe you can and you're halfway there.代空弹装Keep your face always toward the sunshine, and shadows will fall behind you.备歼Push yourself, because no one else is going to do it for you.

中国Don’t stop when you’re tired. Stop when you’re done.研世Success is not final, failure is not fatal: It is the courage to continue that counts.

界首Great things never come from comfort zones.

款空导It’s going to be hard, but hard does not mean impossible.代空弹装Don’t stop when you’re tired. Stop when you’re done.

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Success is not final, failure is not fatal: It is the courage to continue that counts.界首Wake up with determination. Go to bed with satisfaction.

(责任编辑：底里)