1·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》
2·The old woman sat down, bolt upright in the chair.
老妇人在椅子上坐了下来，身子挺得笔直。
3·The nursery teacher made the children sit bolt upright.
幼儿园的老师让孩子们笔直地坐着。
4·A 75-foot-tall Buddha stands bolt upright, carved from the rock face and covered in plaster, protected from the elements by the facade of the Nine-Story Temple.
一座笔直站立的佛像高75英尺，从岩壁上雕刻而出，覆以灰泥，并用“九层楼”为它遮风挡雨。
5·He squinted at the bedside clock and sat bolt upright.
他眯着眼看了看床头的钟，笔直地坐着。