fibrillation
🇬🇧/ˌfɪbrɪˈleɪʃən/ 🇺🇸/ˌfɪbrəˈleɪʃn/ 20a local and uncontrollable twitching of muscle fibres, esp of the heart, not affecting the entire muscle. 肌纤维震颤
noun [专属名词][医] 纤维性颤动，[生物] 原纤维形成
In most cases, it's probably ventricular fibrillation that causes these sudden deaths from fear.
在大多数情况下，可能是心室颤动引起人在恐惧中暴亡。
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