Definition: with a lot of things close together Level: B2
我们在一个拥挤的房间里等待。
We waited in a ___densely packed room.
墨西哥城是世界上人口最密集的城市之一。
Mexico City is one of the most ___densely populated cities in the world.
生活在一个人口密集的地区可能很有挑战性。
Living in a ___densely populated area can be challenging.
