The word 'catalyst' refers to a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. It can also mean a person or thing that precipitates an event.
单词'catalyst'的意思是“<化>触媒，催化剂”，也指“<比喻>触发因素”。它还可以形容“促进因素”或“<口>有感染力的人”。
| 单词 | catalyst |
|---|---|
| 音标 | [ˈkætəlɪst] [ˈkætlɪst] |
| 释义 | n.["<化>触媒，催化剂","〈比喻〉触发因素","促进因素","〈口〉有感染力的人"] |
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