catalyst [ˈkætəlɪst]以下由轻松背单词网站提供
单词级别第8级基本释义n.催化剂,造成变化的人或事英英释义something that makes a chemical reaction happen more quickly without itself being changed参考例句A catalyst is a substance which speeds up a chemical reaction. 催化剂是一种能加速化学反应的物质。The workers' demand for better conditions was a catalyst for social change. 工人们要求改善工作条件促进了社会变革。 推荐阅读 |