The difference between them is as follows: 1. "One-stop" service refers to a full-service restaurant, including catering, entertainment and leisure services. This kind of service is of high grade, comfortable environment, thoughtful service, rich dishes and relatively high price. One-stop service is suitable for business banquets, family gatherings, weddings and other occasions.

2. "Fast food" refers to places that provide fast food services, mainly fast food, such as hamburgers, fried chicken, pizza, sandwiches, etc. Fast food is characterized by high speed, low price, convenience and quickness, and is suitable for a fast-paced lifestyle. Set up fast food in business districts, schools, hospitals and other places.