单词 | operative |
---|---|
音标 | ['ɔpərətiv] |
解释 | a.(计划等)实施中的;生效的 |
红宝书 | 【英】 adj. (计划等)实施中的; 生效的(effective) 【记】 oper(做)+ative→在 做的→在实施中的 【同】 同根词:operose(费 力的);opus(作品, 大作) 【例】 The airport is operative again after the bad weather. |
字源 | operative (adj.) "producing the intended effect," early 15c., from Old French operatif (14c.) or directly from Late Latin operativus "creative, formative," from operat-, past participle stem of operari (see operation). Weakened sense of "significant, important" is from 1955. operative (n.) "worker, operator," 1809, from operative (adj.); sense of "secret agent, spy" is first attested 1930, probably from its use by the Pinkerton Detective Agency as a title for their private detectives (1905). |
不择手段背单词 | 无 |
趣味全助记 | 无 |
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