precursor

英 [priː'kɜːsə(r)] 美 [priː'kɜːrsər]

• n. 先驱；前任；前兆；[生物]前体，前驱体

英英释义

Noun:

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

3. something that precedes and indicates the approach of something or someone

例句

用作名词 (n.)

1. The precursor of the modern car was a horseless carriage with a petrol engine.
   现代汽车的前身是不用马拉的，装有汽油发动机的车子。
2. Her precursor as school principal was an eminent educator.
   她任校长前是一位卓越的教育家。
3. 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。
4. Lysine is a precursor of certain alkaloids.
   赖氨酸是某些生物碱的前体。

经典引文

• Infantile fears..are the precursors of many..anxieties entertained by adults

  出自： E. H. Erikson

• There is no evidence that Jesus, or his precursor John, taught pacifism as such.

  出自： A. N. Wilson

词汇搭配

• cartilaginous precursor 前软骨
• precursor fault 初始断层
• vitamin precursor 维生素原
• precursor cell 前体细胞
• precursor relation 前身关系
• specific precursor 特异性前体
• precursor substance 产物母体,先质,前身...
• enzyme precursor 酶的前体
• milk precursor 乳前体物
• angiotonin precursor [医] 血管紧张素前...
• earthquake precursor 地震先兆现象...
• precursor chain 前身链

近反义词

【近义词】

• ancestor 祖宗
• antecedent 前情
• forerunner 先驱
• predecessor 祖先
• herald 使者
• pioneer 先锋
• original 原始的
• originator 创始人
• parent 父母
• sign 手势
• foundation 根基
• leader 领袖
• foretaste 预示
• harbinger 先驱