英语四级高1.alter v. 改变，改动，变更 I'll have to alter the diagram. I've made a mistake 2.burst vi.,n. 突然发生，爆裂 The police burst through the door 3.dispose vi. 除掉；处置；解决；处理(of) I must dispose of the trouble 4.blast n. 爆炸；气流 vi. 炸，炸掉 The bomb blast killed several