catalyst

'kætәlist
六级托福雅思GRE Collins 1

英文释义

n. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
n. something that causes an important event to happen

中文翻译

n. 触媒, 接触剂, 催化剂, 刺激因素, 促进因素
[计] 催化剂

1
Collins 星级
8,852
BNC 频率
7,915
使用频率

记忆技巧

catalyst 由 cata-（向下、彻底）和 -lyst（解开、分解）组成，表示能够加速或引发化学反应的物质。

例句

1. The teacher acted as a catalyst for our discussion on climate change.
老师在我们关于气候变化的讨论中起到了催化剂的作用。
2. The new law served as a catalyst for economic growth in the region.
新法律成为该地区经济增长的催化剂。
3. Her encouragement was the catalyst that motivated him to pursue his dreams.
她的鼓励是激励他追求梦想的催化剂。

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