词汇讲解：
1. author n. 创造者, 创始人; 发起人；著作家, 作者
例句：As the author of the scheme I can't really comment.
我作为这一计划的创始人是不便置评的。
2. release vt. 发布; 发行; 发售
例句：The commission released its findings.
委员会公布了调查结果。
3. epidemic n. 流行病
例句：The Sanitary Board tries to stamp out the epidemic.
卫生局试图消灭这种流行病。
4. sharply adv. 锋利地;锐利地；突然地；急剧地；猛烈地;激烈地
例句：Demand for personal computers has risen sharply.
对个人电脑的需求急剧增长。
5. immunization n. 免疫
例句：The disease was stopped in its tracks by immunization programmes.
免疫方案阻止了这种疾病的蔓延。
6. reverse v. (使)反转; (使)颠倒; (使)翻转
例句：Their positions are now reversed.
他们现在的位置颠倒了。
7. invest v. 投资; 花费
例句：He invested all his money in real estate.
他把钱全部投资房地产。
8. promising adj. 有希望的, 有前途的
例句：The results of the experiments are very promising.
实验的结果充满了希望。
9. expect vt. 预料; 预期
例句：She expects to fail the exam.
她预料无法通过考试。
10. survive vi. 幸存, 活下来
例句：These plants cannot survive in very cold conditions.
这些植物在严寒中不能存活。
11. transmit vt. 传播, 传染; 传染病
例句：Insects can transmit diseases.
昆虫能传播疾病。
12. infection n. 传染, 感染
例句：White blood cells fight infection.
白血球抵抗感染。
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