This expansion of the lineup required a new cash infusion.

This is because expansions require little addition to base gas.

The dramatic expansion of services and stock required extensive alterations to the buildings.

Of course, such expansion requires more latitude, and here's the scary part.

The original board game may be played for free, while expansions require a subscription membership.

But the expansion requires matching money from the states, many of which are in financial crisis.

The expansion of the area required the establishment of a post office in 1948.

They worry that a significant expansion will require court restructuring - as it may.

All these expansions require at least one copy of the original game to be played.

Any such expansion of pollution rules would probably require action by Congress, where there is significant opposition to the idea.