catalyst
/'kætәlist/
六级托福雅思GRE基础词汇
BNC词频: #8,852
当代词频: #7,915
中文释义
n. 触媒, 接触剂, 催化剂, 刺激因素, 促进因素
[计] 催化剂
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