名詞 precursor:

1. a substance from which another substance is formed (especially by a metabolic reaction)
2. a person who goes before or announces the coming of another
   同義詞：forerunner
3. an indication of the approach of something or someone
   同義詞：harbinger, forerunner, herald

1. The precursor of the modern car was a horseless carriage with a petrol engine.
   現(xiàn)代汽車的前身是不用馬拉的，裝有汽油發(fā)動(dòng)機(jī)的車子。
2. Opposition by colonists to unfair taxation by the British was a precursor of the Revolution.
   殖民地居民對(duì)英國不公正稅收的反抗預(yù)示著革命的到來
3. British poet considered a precursor of romanticism. His best-known work, The Task(1785), praises rural life and leisure.
   科伯，威廉1731－1800英國詩人，被認(rèn)為是浪漫主義的先鋒。他的最杰出的作品任務(wù)贊美了農(nóng)村生活和休閑

pre.cur.sor

n.（名詞）
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來的人或事：
例句：
Opposition by colonists to unfair taxation by the British was a precursor of the Revolution.
殖民地居民對(duì)英國不公正稅收的反抗預(yù)示著革命的到來

One that precedes another; a forerunner or predecessor:
前任：先于另一人的人；先鋒或先行者：
例句：
Her precursor as school principal was an eminent educator.
她任校長前是一位卓越的教育家

A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, that gives rise to a more stable or definitive product:
前體：生化物質(zhì)，如一連串酶反應(yīng)中的中間化合物，可形成更穩(wěn)定或明確的結(jié)果：
例句：
a precursor of insulin.
胰島素前體

來源：
Middle English precursoure
中古英語 precursoure
from Old French precurseur
源自 古法語 precurseur
from Latin praecursor
源自 拉丁語 praecursor
from praecursus [past participle of] praecurrere [to run before]
源自 praecursus [] praecurrere的過去分詞 [超前于…]
prae- [pre-]
prae- [前綴，表.先于….]
currere [to run] * see kers-
currere [進(jìn)行] *參見 kers-