mindmap root((攻击)) attack implies aggressively taking the initiative in a struggle: seek new ways to ~ the problem of poverty. assail implies attempting to conquer or break down resistance by repeated blows or shots: ~ed the enemy with artillery fire. assault suggests a direct attempt to overpower by suddenness and violence of onslaught in a direct confrontation: commando troops ~ the building from all sides. 突击队 （onslaught猛攻，剧烈猛烈毁灭性打击suggests a vigorous, destructive attempt to overwhelm by force of momentum or numbers or intensity，如succumbed to the onslaught of the disease被猛烈突发的疾病击垮） 解释中有2个direct，可见强调直接近身 bombard applies to attacking continuously and devastatingly with bombs or shells: ~ed the city nightly. storm implies an attempt to sweep from its path every obstacle to victory: a fortress that has never been ~ed.