dense waterway net region

例句：

1. 1. Theforest is dense with trees.
   森林里树木茂密。
2. 2. The soil is very dense,making it difficult to dig.
   土壤非常密集，很难挖。
3. 3. The dense fog obscuredthe view of the distant mountains.
   浓雾使远处的山峦变得模糊不清。