Precursor ion
[化] 先驱离子
🧩 词语组成解析
precursor
[pri'kɝsɚ]
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;
pre…前，预先+curs跑，发生+or名词后缀，表人或物→先跑者→先驱
ion
['aiən]
n. <物>离子;
🗣️ 情景例句
Something old ...
旧的东西……
Is this seat taken?
这位子有人坐吗？
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。