The hairs on my arms stood bolt upright.

我手臂上的汗毛直立。

The dragon was supposed to stand, bolt upright, on the handler's outstretched arm.

这条龙应该直立在操纵员伸出的手臂上。

He was standing bolt upright with his back to the wind, a tuft of snow piled on his square shoulders, a monument of passive endurance.

他背对着风直挺挺地站着， 一簇雪堆在他方肩上， 是被动忍耐的纪念碑。