Định Nghĩa và Ý Nghĩa của "[pick up] the baton"

What is the origin of the idiom "pick up the baton" and when to use it?

The idiom "pick up the baton" comes from relay races, where runners pass a baton to their teammate to continue the race. It is used to describe a situation where someone takes over a task or responsibility that was previously handled by someone else.