1
catalyst for sth
表示‘导致某事发生的促进因素’。
The election was a catalyst for political change in the country.
这次选举是该国政治变革的催化剂。
催化剂；触媒
先理解核心含义，再看它在真实句子里的用法。
催化剂；触媒
catalyst
The election was a catalyst for political change in the country.
这次选举是该国政治变革的催化剂。
增加化学反应速率而不被消耗的物质。
A substance that increases the rate of a chemical reaction without being consumed in the process.
(化学)一种引发或加速化学反应而自身不受影响的物质
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
促进进步或改变的事物。
Something that encourages progress or change.
引发重要事件的事物
something that causes an important event to happen
Certain enzymes work as catalysts to speed up digestion in the human body.
某些酶在人体内充当催化剂，以加快消化。
AI contextual example
The chemist added a catalyst to the mixture to make the reaction happen faster.
化学家向混合物中加入一种催化剂，使反应更快发生。
AI contextual example
A catalyst remains unchanged after the chemical reaction is complete.
化学反应完成后，催化剂保持不变。
AI contextual example
the invasion acted as a catalyst to unite the country
这次入侵起到了催化剂的作用,促使全国团结起来。
WordNet
表示‘导致某事发生的促进因素’。
The election was a catalyst for political change in the country.
这次选举是该国政治变革的催化剂。
强调在某过程中的催化作用。
His speech acted as a catalyst in the peace negotiations.
他的讲话在和平谈判中起到了催化剂作用。
Not this
The new policy catalysted economic growth.
Use this
The new policy catalyzed economic growth.
错误：将'catalyst'用作动词。'catalyst'是名词，意为'催化剂'；其动词形式为'catalyze'（美式）或'catalyse'（英式），表示'催化'。
Not this
He was the catalysis for change.
Use this
He was the catalyst for change.
错误：误用'catalysis'代替'catalyst'。'catalysis'指'催化作用'这一过程，而'catalyst'指'催化剂'这一物质或因素。表示'促进因素'时应用'catalyst'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
化学催化剂
The reaction requires a chemical catalyst to proceed.
这个反应需要一种化学催化剂才能进行。
变革的催化剂
The protest was a catalyst for political change.
这场抗议是政治变革的催化剂。
充当催化剂
His speech acted as a catalyst for the movement.
他的演讲充当了这场运动的催化剂。
强大的催化剂
Education is a powerful catalyst for social progress.
教育是社会进步的强大催化剂。
主要催化剂
The invention was a major catalyst for the industrial revolution.
这项发明是工业革命的主要催化剂。
经济催化剂
Tourism can be an economic catalyst for developing countries.
旅游业可以成为发展中国家的经济催化剂。
变革的催化剂
The new policy served as a catalyst for change in the organization.
新政策成为了组织变革的催化剂。
增长的催化剂
Education can be a catalyst for economic growth.
教育可以成为经济增长的催化剂。
我是一个催化剂。我只是让事情开始运转。
In The Dark Knight, the Joker describes himself as a catalyst.
在《黑暗骑士》中，小丑形容自己是一个催化剂。
Use catalyst naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
猫（cat）踩油门加速，自己不动——催化剂。
语域：neutral 常见场景：chemistry、figurative use 该词在化学领域为专业术语，在日常比喻用法中也常见，因此注册标记为中性。通常用于正式或半正式语境。
常用作可数名词，常见搭配：a catalyst for (change, growth, etc.)
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.