He’s suffering from an acute infection of the lower respiratory tract.
他患有急
下呼吸道
。
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CNN 10 学生英语 2020
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集
11
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CNN 10 学生英语 2019
8
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代周刊 (Time) Studies have shown that moderate aerobic exercise- 30 to 45 minutes per day of activities like walking, biking or running- can more than halve your risk for respiratory infections, partly by increasing circulation of immune cells.
研究表明,适度的有氧运动——也即每天坚持30--45分钟的活动,如散步、骑车或跑步——能够将呼吸
感染的几率缩小一半,部分通过加快免疫细胞的循环。
3
集 Overall the efficacy rates were pretty impressive: GSK's vaccine was about 83 percent effective at preventing infection in the lower respiratory tract in adults 60 and older and 94 percent effective at preventing severe disease.
疫苗总体疗效非常可观:在预防 60 岁及以上成
人下呼吸
感染方面,葛兰素史克疫苗的有效率约为 83%,重症预防率为 94%。
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7
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报 (New York Times)
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集