Final answer:
The phrases 'Sunday morning' and 'noted facts such as how much milk and ice cream had been delivered' in the passage imply that the word 'routine' refers to the everyday, customary actions typical of a peacetime Sunday morning.
Step-by-step explanation:
The words from the passage that help you understand the meaning of the word routine are 'Sunday morning' and 'noted facts such as how much milk and ice cream had been delivered'. A routine is the usual series of things that you do at a particular time. A routine is also the practice of regularly doing things in a fixed order.
The players had to change their daily routine and lifestyle. They include the floor exercises as a regular part of their fitness routine.These phrases suggest that the actions being described are habitual and ordinary, lacking in any special or unusual events that might differentiate this particular Sunday from any other. The mentioning of mundane details about milk and ice cream deliveries underscores the regularity and ordinariness of the events being recorded.