Precursor nuclide
[化] 前驱核素
🧩 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
n. 核素\\n[化] 核素
🗣️ 情景例句
for his ten o'clock appointment with you.
等着十点钟与你的晤谈。
Lying is the first step to the gallows.
说谎是上断头台的第一步。
Did you buy one, sir?
你买了票吗，先生？