precursor

.pri:'kә:sә
托福GRE Collins 1

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

中文翻译

n. 先驱者, 前导, 前兆
[化] 前体; 前身; 产物母体

1
Collins 星级
10,361
BNC 频率
9,664
使用频率

记忆技巧

precursor 由前缀 pre-（意为“在...之前”）和词根 cursor（来源于拉丁语，意为“跑”或“奔跑者”）组成，整体意思是“在某事物之前跑的东西”，引申为“先驱”或“前身”。

例句

1. The scientist discovered a precursor to the new medication.
科学家发现了一种新药的前体。
2. Many diseases have symptoms that act as precursors to more serious conditions.
许多疾病有症状，作为更严重情况的前兆。
3. The artist's early works were a precursor to her famous style.
这位艺术家的早期作品是她著名风格的前奏。

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