When I pushed his door open, Trevor was sitting bolt upright in bed.

我推开他的门时，发现特雷弗正笔直地坐在床上。

《柯林斯英汉双解大词典》

I was woken by a loud banging noise around 2.15am. I sat bolt upright in my bed and noticed a tall dark figure standing at the bottom of my bed.

凌晨大约两点一刻的时候我又被一声巨大的砰砰声给吵醒了，我立马直起身子，注意到我床尾处站着一个巨大的黑影。

youdao

Two or three times, she sat bolt upright in her bed, as though she would snatch at the life which was winging its way back to God.

有两三次她从床上笔直地坐起来，仿佛想抓住她正在上升到天堂里去的生命。

youdao

Sometimes when Magda comes out onto the steps and speaks, I sit bolt upright in bed.

NEWYORKER: Magda Mandela