precursor

英语音标

英语翻译

n.先驱；前任；前兆；[生物]前体，前驱体

英语例句

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。

知识扩展

前驱体

adj.先驱的；前兆的；作预备的