con.vul.sion
n.(名词)An intense, paroxysmal, involuntary muscular contraction.抽搐:一种强烈的、阵发性的、不自觉的肌肉收缩An uncontrolled fit, as of laughter; a paroxysm.狂笑,发作:无法控制的发作,如大笑等;突然发作Violent turmoil:骚乱:强烈的骚动或动乱:例句:.The market convulsions of the last few weeks have shaken the world.(Felix Rohatyn).前几周的市场动荡震动了整个世界.(费利克斯·罗哈廷)