单词：precursor
[化] 前体; 前身; 产物母体
n. a person who goes before or announces the coming of another
考试类型：[托福/GRE]
precursor的用法和样例：
例句
- 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。
- Her precursor as school principal was an eminent educator.她任校长前是一位卓越的教育家。
- 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。
- Lysine is a precursor of certain alkaloids.赖氨酸是某些生物碱的前体。
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
经典引文
Infantile fears..are the precursors of many..anxieties entertained by adults
出自：E. H. EriksonThere is no evidence that Jesus, or his precursor John, taught pacifism as such.
出自：A. N. Wilson
- 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
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