授予加州千橡市的一名医生——唐纳德·昂格尔（Donald Unger），60年来的每一天，他把左手指节掰得咯吱作响，但从不掰右手指节，研究这样做是否会引起关节炎。
To Donald Unger, a doctor in Thousand Oaks, California, who cracked the knuckles of his left hand, but never those on his right, every day for 60 years to investigate whether it caused arthritis.
症状持续90天，往往列为急性支气管炎，症状持续更长几个月或几年，列为慢性支气管炎。
Symptoms lasting up to 90 days are usually classified as acute bronchitis; symptoms lasting longer, sometimes for months or years, are usually classified as chronic bronchitis.
核磁共振造影（MRI）结果显示小王右肩扭伤并有滑液囊炎（注）。他极有可能会在未来几天被放进15天伤兵名单。
The MRI revealed that Wang has a right shoulder strain and bursitis. It's likely he will be placed on the 15-day disabled list in the coming days.
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