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外博词典,懂英语单词快速记忆法的在线英语词典

preventive (adj.)

"serving to prevent or hinder; guarding against or warding off," 1630s, from Latin praevent-, past-participle stem of praevenire "come or go before, anticipate" (see prevent), + -ive. As a noun, "something taken or done beforehand," from 1630s; in medical use from 1670s. Related: Preventively; preventiveness.

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