Ziegler catalyst
[化] 齐格勒催化剂
🧩 词语组成解析
n. 齐格勒（德语人名）；捷格罗白葡萄酒
🗣️ 情景例句
John cannot get to the phone right now.
John现在没办法接电话。
A good horse often needs a good spur.
好马常要好靴刺。
There is a table in the room.
客厅里有张桌子。