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
You look very young. How old are you?
你看起来真年轻， 你多大了？
He who rides a tiger is afraid to dismount.
骑虎者难下。
for it is then almost ready to undertake heavy work and can begin to earn its keep straight away.
这个年龄的象差不多已能干重活，可以很快挣回饲养它的开支。