A play is under way and I've got a crucial part.

The crucial part of the race is generally the start.

That last moment is also a crucial part of the performance.

It is a crucial part of city life, and now there will be one more.

"Only a little bit seems to show of the most important and crucial parts."

The dog soon becomes a crucial part of the boy's family.

Energy production is also a crucial part of the local economy.

The crucial part of the job was yet to begin, but his people all knew what to do.

But they'd had the time, that was the crucial part.

The local population around the area is a crucial part of the project.