Government checkpoints were so numerous that it was difficult to travel anywhere without passing through one.
This has been particularly helpful to elite wheelchair-basketball teams, which find it difficult to travel.
It's a big city, and it's difficult to travel by car.
But after 9/11 it became so difficult to travel with my cello".
Will it be more difficult to travel here after Brexit?" He sincerely hopes not.
More mundanely, it was also difficult to travel in the eighteenth century.
But as anyone stranded in this mess knows well, it's difficult to travel to, from or very far within Europe.
William's health makes it difficult to travel: he has to be fed through a tube, which requires transporting hefty equipment.
Moalin told me that it was difficult to travel with a Somali passport and, of course, there was no money.
Meanwhile, Libya's neighbours, Egypt and Algeria, have made it more difficult to travel through their territory to reach Libyan soil.
Their mobility may be limited, and they may lack money, making it difficult to travel to, say, London to protest.
