Human testing is typically the most expensive part of the drug development process.

This is the most expensive part of the studio that we have.

"The most expensive part of this game is not opening," he said.

This university city is the most expensive part of eastern England.

The most expensive part of each plan is a $500-per-child tax credit.

Reading your genome is the most expensive part, and it takes time.

Press time is the most expensive part of print media.

Often students buy a frame and add expensive parts to it.

"It's going to make a huge difference to workers covered by the bill who live in the most expensive part of the nation."

Once you have the news gathering in place, that's the expensive part.