Level 5 · word 6,736 of 20,000
catalyst
/ˈkætəlɪst/
American
- n. 催化剂, 促进因素
- Definition
- n. a substance or event that causes a change or reaction
- Example
- The new manager became a catalyst for real change.
- 新来的经理成了真正变革的催化剂。