求翻译：西部牛仔（West cowboy），是指18至19世纪的美国，在西部广袤的土地，一群热情无畏的开拓者。在美国历史上，他们是开发西部的先锋，他们富有冒险和吃苦耐劳精神，因此被美国人称为“马背上的英雄”。是什么意思？

Cowboy (west cowboy), refers to the 18-19 century, the United States, the vast land in the west, a group of enthusiastic and fearless pioneer. In American history, they are the vanguard of the development of the western, adventurous and hard-working spirit of the Americans referred to as "the hero o

Cowboy (West cowboy) is 18 to 19th-century in the United States, the western expanse of land, a group of passionate and fearless pioneer. In the history of the United States they are pioneering the development of the western region, their adventurous spirit and hard work, it is known as the "horse"

West the cowboy (West cowboy), is refers to 18 to the 19th century US, in western length and breadth land, a crowd of enthusiasm dauntless earlier worker.In the American history, they are west the development cutting edge, they take risk richly and bear hardships and stand hard work the spirit, ther

Cowboy (West cowboy), refers to the 18 to 19th century United States, vast land in the West, a group of enthusiastic fearless pioneer. In United States history, they were pioneers in the Western development, they are full of adventure and hard working spirit, so what Americans call "Heroes on horseb

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