The old lady was sitting upright in her chair, stiff as a poker.

这个老妇人挺着身子，笔直地坐在椅子里。

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SIDE STRETCH: Sitting upright, hold onto the seat with one hand.

侧向伸展：坐直，一首把住椅子。

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The old lady was sitting upright in her chair, stiff as a poker .

这个老人挺着身子，笔直地坐在椅子里。

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But besides just being kind of weird, it requires, even at a minimum, sitting upright in bed.

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On the morning of Friday, February 22nd, three days before she was to start her new round of chemo, Rich awoke to find his wife sitting upright beside him, pitched forward on her arms, eyes wide, struggling for air.

NEWYORKER: Letting Go

The study by doctors at the Children's Hospital in St Paul and the University of Minnesota School of Medicine, also warned about not using other baby equipment which necessitated babies sitting upright during their first few months of life.

BBC: Car seat danger to new babies