毛驴看见蛇时，猛然弓背跃起。

The donkey bucked when it saw the snake.

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第一下弓背跃起就把骑手摔下来的马。

A horse that unseated its rider on the first buck.

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并且避免弓背。

And avoid arching your back.

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她叙述了一个案例，在这个案例中猛然弓背跃起的马的前腿被狠狠折断。

She states one case in which a bucking horse suffered a badly broken front leg.

youdao

她叙述了一个案例，在这个案例中猛然弓背跃起的马的前腿被狠狠折断。

She states one case in which a bucking horse suffered a badly broken front leg.

youdao