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本期内容：
In a four-day hackathon concluding on Monday, 12,000 people from 98 countries submitted more than 1,000 ideas for dealing with the COVID-19 pandemic.
First prize went to Berlin-based start-up SunCrafter for its solar-powered hand disinfection station, which uses ultraviolet light to inactivate bacteria and viruses.
hackathon n. 黑客马拉松
• swimathon: 马拉松式游泳（长距离游泳比赛）
submit vt. 提交
• submit an application: 呈递申请书
• submit a complaint: 提交控诉书
solar-powered adj. 太阳能的
• wind-powered adj. 风能的
disinfection n. 消毒
ultraviolet adj. 紫外线的
inactivate vt. 灭菌；使不活泼（生物用语）
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