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
I'm glad Mr. Marchetta was so helpful.
我真高兴 ，Marchetta先生如此帮忙。
It is harder to marry a daughter well than to bring her up well.
养女容易嫁女难。
These are the parts of the character: ear, you, eyes, undivided attention and heart.
“耳”、“你”、“目”、“专一”和“心”。