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VOA慢速英语:Report: Smoking May Permanently Damage Genetic Material(翻译)
2016-10-01来源:VOA
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compelling – adj. very interesting and able to hold your attention
methylation – n. the process in which certain chemicals called “methyl groups” are added to proteins, DNA and other molecules
author – n. someone who is a writer
impacts – n. effects
quit – v. stop doing something