precursor

precursor读音音标

英 [pri:ˈkɜ:sə(r)]

美 [priˈkɜrsə(r)]

precursor意思解释

n.

前辈，前驱，先锋，前任；

预兆，先兆，初期形式；

[核]前驱波，初级粒子；

预报器

变形

复数：precursors

英英释义

n.

a substance from which another substance is formed (especially by a metabolic reaction)

a person who goes before or announces the coming of another

同义词：forerunner

an indication of the approach of something or someone

同义词：harbingerforerunnerherald

词组短语

precursor chemicals

双语例句

用作名词(n.)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。