这段又不难为何总是读不好。T^T

Restaurant owners have to know how to make food.They also have to know how to make money.Here are some things they've learned from scientific studies.The color red makes people hungry.Red also makes customers eat faster.Many fast food restaurants,therefore,have red furniture or walls.Soft colors like pink and light blue make people relaxed,so they spend more time eating their meals.Soft lighting makes people look good,but it makes food look bad.Loud music may be nice at first,but it soon makes people want to leave.Hard seats also makes costumers want to eat quickly and leave.Many restaurants,especially fast food restaurants,use this knowledge to make customers eat faster.Customers only sit for about 20 minutes before they leave.Because customers don't stay very long,small restaurants can serve many people every day.