浓雾让人无法看清前方的道路。

The ___dense fog made it impossible to see the road ahead.

我们在徒步时在茂密的森林中迷路了。

We got lost in the ___dense forest during our hike.

一声警告的呼喊从茂密的灌木丛中传来，告诉我们停下。

A warning shout came from the ___dense undergrowth, telling us to stop.