shuanghui sandwich and sandwich can't be better. Shuanghui sandwich and sandwich are the same, there is no difference between sandwich and sandwich, but the name is different. Sandwich is the transliteration of English sandwich. Other places are called sandwiches. Sandwich is a typical western brand food, which is made by cutting bread into two parts, adding some meat, such as ham, sausage, bacon (bacon), cheese and various seasonings. It is easy to eat.