1.menacing
adj. 威胁的；险恶的
v. 威胁（menace的ing形式）；恐吓
仿Let no man forget how menacing he is.
2.A word to the wise给你一句忠告
3.bigheaded
adj. 自大的；自负的
仿She is so big headed that everyone in the village keep at a distance with her.
4.Summary
Malfoy was laughed at Harry for Colin's request. Ron intends to use the wand to punish Malfoy.Lockhart solved the Harry's problem and misunderstood that Harry wanted to be famous.
