柯林斯詞典catalyst /?k?t?l?st/ (catalysts) 1. N-COUNT You can describe a person or thing that causes a change or event to happen as a catalyst. 催化劑 I very much hope that this case will prove to be a catalyst for change. 我非常希望這件事終將成爲(wèi)促成變化的催化劑。2. N-COUNT In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly. 催化劑 返回 catalyst劍橋詞典chemistry specialized something that makes a chemical reaction happen more quickly without itself being changed 催化劑 an event or person that causes great change 促成變化的人；引發(fā)變化的事件 The high suicide rate acted as a catalyst for change in the prison system . 高自殺率促成了監(jiān)獄系統(tǒng)的改革。 返回 catalyst