Fast food is becoming more and more popular in China, especially among children and teenagers. Today, nothing is more representative of the fast pace of modern society than fast food.

　　There are its popularity. For one thing, it is fast and convenient. Go into a fast food restaurant, and your food will be ready in a minute. Precious time won't be wasted in waiting-in-line to order or waiting at your table for your food to arrive. For another, its popularity is also attributed to the clean food, the excellent service and the comfortable environment of the fast food restaurants, and American style.

　　However, I think that fast enough because it doesn't compose a balanced diet and is low in nutrition.