Both are fast food brands. According to the query related information shows that SUBWAY is a multinational fast food chain originated in the United States, mainly selling sandwiches and salads, held by Doctor's Associates, Inc. (DAI), is the world's fastest expanding and largest single-branded chain, originated in the U.S., more than 26,000 franchises globally, spread over more than eighty countries, has become a leader in the international fast food industry. It has become a leader in the international fast food industry. In recent years, McDonald's has been selected as the No. 1 franchise system by Entrepreneur Magazine. McDonald's is a large global multinational restaurant chain, founded in 1955 in Chicago, the United States, has about 30,000 outlets in the world. McDonald's mainly sells hamburgers, as well as french fries, fried chicken, sodas, ice, salads, fruits and other fast food. McDonald's restaurant in mainland China in the early translation of the name is "McDonald's fast food", until the later part of the unified use of the current Hong Kong-style translation of the name. In the folk, because of McDonald's and "Peony House" sound close, Peony House is also taken as a nickname for McDonald's, but not common.