CLEAN : Glasgow biggest Commonwealth Games ever

The transcript discusses the Glasgow 2014 Commonwealth Games, highlighting its significance as the largest edition with 4929 athletes. It emphasizes the readiness of world-class venues and the excitement surrounding the opening ceremony. The event serves as a platform for athletes to advance in their careers, with many going on to excel in World Championships and the Olympics.

What has been the preparation effort described by the speaker regarding the opening ceremony?

How have athletes benefited from participating in the Commonwealth Games according to the speaker?