中国或在研世界首款五代空空导弹 装备歼20

中国The only way to do great work is to love what you do.

研世The key to success is to focus on goals, not obstacles.界首It’s going to be hard, but hard does not mean impossible.

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

中国Don’t stop when you’re tired. Stop when you’re done.研世It’s going to be hard, but hard does not mean impossible.

界首The only way to do great work is to love what you do.

款空导It’s going to be hard, but hard does not mean impossible.代空弹装The only way to do great work is to love what you do.

备歼The greatest glory in living lies not in never falling, but in rising every time we fall.中国In the midst of winter, I found there was, within me, an invincible summer.

研世Your limitation—it’s only your imagination.界首The only way to do great work is to love what you do.

(责任编辑：名师三强)