dense

浓雾

refers to fog that is very thick and difficult to see through

茂密的森林

describes a forest with a large number of trees growing very close together

树木生长得非常密集的森林

密集的人口

refers to a large number of people living in a specific area

指大量人口聚集在一起

茂密的丛林

describes a jungle with thick, tangled vegetation that is difficult to move through

浓烟

refers to smoke that is very thick, often making it hard to breathe or see

一大团浓密的烟雾，难以看透

密集的网络

describes a system with many interconnected parts or nodes

在集中区域内有许多连接的网络。

茂密的植被

refers to an area covered with a large amount of plant life

植物密集地生长在一起。

describes clouds that are thick and opaque