词汇 | prevalence |
词根词缀 | 词源: 1590s, "fact of having mastery," from Fr. prévalence, from M.L. praevalentia, from praevalere (see prevalent). Meaning "condition of being widespread or general" is from 1713. 词根记忆: n. 优势;盛行(prevail的名词:pre+val+ence)[vail,val=strong,表示"强壮"] |
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