A bronco is a wild horse from the western United States, or a horse that has not been trained to take a rider and still bucks. English borrowed it in the 1800s from Spanish bronco, rough; in Mexican usage it already described a horse that had not been broken and was still wild.

A bronco is a wild horse from the western United Statesbronco是美國西部的野馬 or a horse that has not been trained to take a rider and still bucks或是一匹還沒被訓練成能載人、還會亂踢亂跳的馬。English borrowed it in the 1800s from Spanish bronco, rough英文在1800年代從西班牙文bronco（意思是粗野）借來這個字 in Mexican usage it already described a horse that had not been broken and was still wild在墨西哥的用法裡，它本來就是指還沒被馴服、還很野的馬。

In rodeos the bronco — or bronc, the short cowboy form — is the horse that tries to throw you. People also stretch it: a bucking bronco can describe a person or a machine that is hard to control.

In rodeos the bronco — or bronc, the short cowboy form —在牛仔競技（rodeo）裡，bronco——或牛仔簡稱的bronc—— is the horse that tries to throw you就是那匹想把你甩下來的馬。People also stretch it大家也會把這個字用得更廣: a bucking bronco can describe a person or a machine that is hard to controla bucking bronco可以形容一個很難控制的人或機器。

It is informal, Western, a little colourful. Though actually, it is not a breed, like an Arabian or a Shetland. It is about how wild or unbroken the horse is, and about that Western world. A quiet lesson pony is not a bronco.

It is informal, Western, a little colourful這個字很口語，帶著西部味，也有點生動。Though actually, it is not a breed不過其實它不是一個品種 like an Arabian or a Shetland不像阿拉伯馬或雪特蘭矮馬那樣。It is about how wild or unbroken the horse is它講的是這匹馬有多野、有沒有被馴服 and about that Western world還有那個西部世界的感覺。A quiet lesson pony is not a bronco一匹乖乖上課用的小馬不算bronco。