Catalyst precursor composition
[化] 催化剂母体成分
🧩 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
🗣️ 情景例句
Why don't you two kiss and make up?
你们俩接个吻，言归于好吧？
Knowledge is the antidote to fear.
知识可以解除恐惧。
If you park your car in the wrong place, a traffic policeman will soon find it.
一旦你把汽车停错了地方，交通警很快就会发现。