The train station was packed solid with people.

火车站上人挤得水泄不通。

《柯林斯英汉双解大词典》

The car park was absolutely packed solid with people.

停车场被人挤得水泄不通。

youdao

As part of USAP regulations, we need to haul out all of our solid human waste (in some places, like the environmentally sensitive Dry Valleys, even all liquid waste needs to be packed out).

根据美国南极计划的规章，我们需要带走所有固体排泄物(在有些地方，如对环境变化特别敏感的干燥谷，甚至是所有液体排泄物也必须打包带走。)

youdao

Above the park, perched on a steep ridge, is an area about ten blocks square, packed solid with hotels, casinos, souvenir shops, observation towers and franchise restaurants.

NPR: Excerpt: 'Inventing Niagara'

The eerie emptiness of Trafalgar Square is contrasted in the Times with a picture from 24 hours earlier when it was packed solid with cheering, flag waving crowds celebrating news of London's successful Olympic bid.

BBC: 10 THINGS WE DIDN'T KNOW THIS TIME LAST WEEK

Getting to that stage might mean combining self-assembly methods with lithography, or doing away with the head that reads the data-packed disk and instead creating a self-assembling solid-state system on the model of Flash memory storage used today.

FORBES: Magazine Article