In comparison, a full takeover bid is a much more costly and difficult undertaking.

As changing irrigation systems can be a costly undertaking, conservation efforts often concentrate on maximizing the efficiency of the existing system.

Instead of spending cuts, there were more potentially costly undertakings, focused largely on the environment and education.

All men understood the value of trade and the necessity to avoid such costly undertakings as war.

Rooting them out could prove a difficult and costly undertaking.

But legal specialists say the filing false-claims lawsuits can be a costly undertaking.

But starting a Saturday paper could be a complex and costly undertaking.

It was the most complex and costliest undertaking in unmanned space study.

By its very nature, the exploration and exploitation of space is a costly undertaking and must compete for funds with other national or individual enterprises.

Beyond that, the task of preserving, housing, displaying and providing research access to the documents will be a large and costly undertaking.