launch; emit; radiate,fire---------"发射”例句如下:(1)Launch when you see the flare.看到讯号弹的光就发射导弹。(2)The napalm won't fire!凝固汽油弹不能发射!(3)The most challenging idea is launching a manned mission.最具挑战性的想法是发射载人飞船。(4)Gun doesn't appear to havebeen fired recently?这把枪最近没有发射过的迹象?(5)1/ 10000 Of the entire energy emitted by this colossal explosion.也就是巨大的爆炸发射的总能量的万分之一。