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
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
Though we may enjoy reading about the lives of others, it is extremely doubtful whether we would equally enjoy reading about ourselves.
我们都喜欢看关于别人生活的报道，但是否同样喜欢看关于自己生活的报道，就很难说了。