莱特兄弟(Th Wright Brothrs)for thousands of yars, mn couldn't fly lik birds in th sky. but th wright brothrs wr mn of prsvranc. thy showd grat nthusiasm in thir nw ida. thy did what othrs couldn't do.although thy wr not ducatd mn, thy had nvr givn up thir dram. popl all ovr th world wr xcitd with joy at thir succss. in fact, bfor th first plan ros into th sky,thy had faild many tims. thir prsvranc is th bst modl to all of us.