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precursor .pri:'kә:sә

TOEFL GRE 柯林斯1⭐

释义

n. 先驱者, 前导, 前兆
[化] 前体; 前身; 产物母体

英文释义

n. a substance from which another substance is formed (especially by a metabolic reaction)
n. a person who goes before or announces the coming of another

词形变化

复数: precursors

BNC词频排名: 10,361 | 当代语料库词频排名: 9,664