Cationic catalyst
[化] 正离子催化剂
🧩 词语组成解析
[医] 阳离子的, 阴向离子的
🗣️ 情景例句
Make yourself at home.
勿客气。
A good beginning is half the battle.
首战告捷等于一半胜利。
I don't have any small pads. I only have large one. Do you want a pad?
我没有小本的信纸，只有大本的。您要一本吗？