Catayst selectivity
[机] 催化剂选择性
🧩 词语组成解析
[机] 催化剂
n. 选择性, 选择度\\n[化] 选择性
🗣️ 情景例句
I said I'd give her an answer in a few days ...
我说这几天给她回答……
Stick to it, and you'll succeed.
只要人有恒，万事都能成。
That's difficult!
那就难啦！