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cluster
['klʌstə]
释义
n.同时发生的同类型事件（如病例）
a series of events of the same type, for example cases of a disease, that all happen in the same place or around the same time
例句
Cuddy: You’re finding a cluster because you think it’s interesting to find a cluster. Two… plain old sick babies would bore you.(House)
卡迪：你在找他们的共同点，因为你觉得这很有意思，两个病因寻常的小孩会让你无聊的。（豪斯医生）
