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
and we must prepare this room.
我们得收拾好房间。
Put (or Lay or Set) one's shoulder to the wheel.
出一把力。
I decided that I must have taken a wrong turning somewhere.
我想一定是什么地方拐错了弯儿。