precursor

释义

n. 先驱者, 前导, 前兆\n[化] 前体; 前身; 产物母体 precursor chemicals 易制毒化学品

例句

Error is often the precursor of what is correct.

错误常常是正确的先导。

Viewed as a precursor to a wider open data movement, it could be as important as any we have seen in the web era.

它被视为更宽泛的数据开放运动的先导，它将像我们在互联网时代看到的所有重要的事物一样重要。