zài / 19 / shì / jì / de / Ōu / zhōu / , / sì / lún / mǎ / chē / shì / zhǔ / yào / de / jiāo / tōng / gōng / jù / 。在19世纪的欧洲,四轮马车是主要的交通工具。In 19th century Europe, four-wheeled carriages were the main means of transportation.