rugged catalyst

例句：

1. 1. The rugged terrain ofthe mountain made it difficult for the climbers to reach the summit.
   山区崎岖的地形让登山者难以到达山顶。
2. 2. Therugged catalyst was ableto break down the complex chemical reaction inrecord time.
   这种粗糙的催化剂能够以创纪录的速度分解复杂的化学反应。
3. 3. The rugged catalyst was a criticalcomponent in the development of new drugs.
   这种粗糙的催化剂是开发新药物的关键成分。