| 单词 | precursor |
| 释义 | precursor[,pri:'kə:sə]n. 先驱者, 前导, 前兆【化】 前体; 前身; 产物母体【医】 先质, 前体(产物母体) precursor pre.cur.sor AHD: [pr¹-kûr“s…r, pr¶“kûr”s…r] D.J. [pr!6kT8s*, 6pri87kT8s*]K.K. [pr!6kPs+, 6pri7kPs+]n.（名词）1. One that precedes and indicates, suggests, or announces someone or something to come:先兆：先于并暗示、表明或宣告某人或某事到来的人或事：Opposition by colonists to unfair taxation by the British was a precursor of the Revolution.殖民地居民对英国不公正税收的反抗预示着革命的到来2. One that precedes another; a forerunner or predecessor:前任：先于另一人的人；先锋或先行者：Her precursor as school principal was an eminent educator.她任校长前是一位卓越的教育家3. A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, that gives rise to a more stable or definitive product:前体：生化物质，如一连串酶反应中的中间化合物，可形成更稳定或明确的结果：a precursor of insulin.胰岛素前体语源:1. Middle English precursoure 中古英语 precursoure 2. from Old French precurseur 源自 古法语 precurseur 3. from Latin praecursor 源自 拉丁语 praecursor 4. from praecursus [past participle of] praecurrere [to run before] 源自 praecursus [] praecurrere的过去分词 [超前于…] 5. prae- [pre-] prae- [前缀，表“先于…”] 6. currere [to run] * see kers- currere [进行] *参见 kers- |
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