Definition: growing close together and in large amounts Level: B1
我们徒步穿过茂密的森林，几乎看不到天空。
We hiked through the ___thick forest, barely seeing the sky.
他有一头浓密的头发，似乎永远不会变乱。
He has incredibly ___thick hair that never seems to get messy.
小路被茂密的灌木丛和多刺的植物挡住了。
The path was blocked by ___thick bushes and thorny plants.
