precursors

英 [priː'kɜːsəz] 美 [priː'kɜːsəz]

• 前驱体

英英释义

名词 precursor:

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

2. a person who goes before or announces the coming of another

3. something that precedes and indicates the approach of something or someone