词汇讲解：
1. slum n. 贫民窟
例句：These children came from a slum area.
这些孩子来自贫民窟区。
2. leak v. 漏
例句：The car leaks oil.
这辆车漏油。
3. premises n. (包括附属建筑、土地等在内的)房屋或其他建筑物
例句：According to the rules, no alcohol can be consumed on the premises.
按照规定，场内不准饮酒。
4. thrill vt. 使紧张;使毛骨悚然
例句：She was thrilled with terror when she saw the scene of the murder.
她看到凶杀现场时,吓得毛骨悚然。
5. despair n. 绝望
例句：Defeat after defeat filled us with despair.
一次又一次的失败使我们完全绝望了。
6. breadwinner n. 养家糊口的人
例句：When her husband died she had to become the breadwinner.
她丈夫死后，她不得不赚钱养家。
7. cordon n. 警戒线,警戒圈
例句：There is a tight security cordon around the area.
这一地区周围设有严密的安全警戒圈。
8. hint v. 暗示, 示意
例句：He hinted his dissatisfaction with her work.
他暗示了对她工作的不满。
9. devise vt. 想出; 计划; 设计; 发明
例句：He is devising how to do that thing.
他正计划如何进行那件事情。
10. previous adj. 先前的, 以前的
例句：The author mentioned it in the previous paragraph.
作者在前一段里提到这件事。
11. revenue n. 收入, 收益; 财政收入, 税收
例句：A government's revenue and expenditure should be balanced.
政府的财政收入和支出要平衡。
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