The phrase "line delivery" refers to how an actor or actress performs a specific line in a scripted play, movie, television show, or other form of performance art. It is the way that they say their lines and can vary greatly depending on the character being portrayed, the tone of the scene, and the intentions behind what is being said.
In "one's" line delivery refers to how an individual performs a specific line in their own unique style or interpretation. This could be influenced by their acting training, personal experiences, or even just their natural speaking voice. It is a way for actors to make a character their own and bring something new and fresh to the performance.
Overall, "one's line delivery" refers to how an individual performs a specific line in a unique and personal way that helps to bring life to the character they are portraying on stage or screen.