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VOA慢速英语:美国17岁少年吸食电子烟肺部受损接受双肺移植手术
2019-11-19来源:和谐英语
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culprit – n. a person who has committed a crime or done something wrong
vaping – n. the action or practice of inhaling and exhaling the vapor produced by an electronic cigarette or similar device
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