bombard
/bɔmˈbɑ:d; bɑm`bɑrd/ v[Tn, Tn.pr]
~ sb/sth (with sth) 1
(a) attack (a place) with bombs or shells (esp from big guns) 轰炸（某地）; 炮轰（某地）
Enemy positions were bombarded before our infantry attacked. 炮轰敌军阵地之後, 我步兵开始进攻.
(b) (fig 比喻) attack sb with persistent questions, abuse, etc （以连珠炮式的问题、辱骂等）攻击某人
Reporters bombarded the President with questions about his economic policy. 新闻记者提出许多有关经济政策的问题围攻总统.
2 (physics 物) direct a stream of high-speed particles at (an atom, etc) （以一束高速粒子）撞击（原子等）.