ZIM Dictionary
One Word, One Wiki
Dense
Having a high mass per unit volume heavy for its size
致密的 - 密度高,重量相对于体积较大
Closely packed together thick
密集的 - 紧密地聚集在一起,浓密的
Difficult to understand impenetrable
晦涩的 - 难以理解,深奥难懂