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
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
When the tree is fallen, every one runs to it with his axe.
大树一倒下，人人持斧来。
He usually stays at home with his pet dog.
他通常跟他的爱犬待在家里。