| 单词 | catalyst |
| 释义 | catalystcatalyst /ˈkæt̮l-ɪst/ ●○○ noun [countable] 1something or someone that causes an important change or event to happen: catalyst for The women’s movement acted as a catalyst for change in the workplace.2science, chemistry a substance that makes a chemical reaction happen more quickly without being changed itself—catalytic /ˌkæt̮lˈɪt̮ɪk◂/ adjective |
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