词汇讲解：
1. prospect n. 前景; 前途
例句：John is in high spirits at the prospects.
约翰对前景充满希望。
2. accusation n. 指责；指控；控告
例句：Your accusation must be grounded on facts.
你的指责必须以事实为依据。
3. regarding prep. (表示论及)关于; 至于; 就…而论
例句：Regarding the punishment, what would you advise?
关于处罚, 你有何意见?
4. plunge v. 下降,急降;(道路等)陡峭地下倾
例句：Since then prices have plunged.
