英语词汇has been a precursor怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	has been a precursor
释义	precursor n — 前兆 n • 前驱体 n • 前奏 n precursor — 前身 • 前辈 • 先声 has-been — 过气
随便看	formal control formal conversation formal cooperation formal coordination formal correspondence formal course formal course of study formal credentials formal criteria formal deadline formal debate formal decision formal decision making formal declaration formal definition formaldehyde formaldehyde content formaldehyde donors formaldehyde emission formaldehyde-free formaldehyde release formaldehyde resin formaldehyde solution formaldehyde standard formal delegation

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

precursor n —