plunge /plʌndʒ/ vt. & vi. 1. 纵身投入，一头进入: plunge boldly into the water 勇敢地跳入水中；plunge deep into thought 陷入沉思；plunge into difficulty 陷入困境 2. 猛冲: His automobile plunged through a fence. 他的汽车冲过栅栏。 The firemen plunged into the building. 消防队员冲进那座楼房。 3. (猛力)把…投入(或刺进): plunge a dagger into the enemy’s breast 把匕首刺进敌人胸膛 4. 使突然陷入，使遭受：be plunged into darkness (confusion) 陷入黑暗(混乱)；be plunged into poverty (war) 陷入贫困(战争)［考句］In 1914, an apparently insignificant event in a remote part of Eastern Europe plunged Europe into a great war. 1914年，发生在东欧一偏僻地区的一件不显眼事件使欧洲陷入一场战争。5.用于习语take the plunge决定做某事：They’re finally taking the plunge and getting married.他们终于决定结婚。