Cemented catalysts
[建] 胶接催化器
🧩 词语组成解析
a. 注水泥的；渗碳的；粘合的
n. <化>催化剂( catalyst的复数形式 ); 触媒; 促进因素; 有感染力的人
🗣️ 情景例句
Are you sure you know where you're going?
你真认识你要去的地方吗？
Knowledge advances by steps and not by leaps.
知识只能循序渐进，不能跃进。
When I boarded the train, I could not help noticing that a great many local people got on as well.
上车后，我不禁注意到许多当地人也上了车。