Government is a key part of any society and culture.
They have the key part in his return to life.
As decision making is a key part of the business world.
Student groups were a key part of the political scene during this period.
The ability to buy new weapons is a key part of the game.
Public health issues have always been a key part of Council's activities.
"But the money is the key part in all of this."
The house system is a key part of the school community.
A key part of his strategy is to force the issue.
Such market research was a key part of the bill that died in the Senate.