While at work, sit upright, with a straight-back, in your chair.

工作时可以坐直，坐在椅子上要挺直腰杆。

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Jack activated one of the monitors in the center of the conference table. Dante Arete sat on the only chair in the interrogation room, gazing straight ahead, his arms cuffed tightly behind his back.

杰克打开会议桌中间的一台显示器，丹蒂·阿雷特坐在审讯室内唯一的一张椅子上，两眼直勾勾地盯着前方，双臂紧紧地铐在身后。

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Choose an upright chair and sit well back so that your spine is straight.

挑一把竖直的椅子，坐好，保持脊椎的挺直。

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Roger sits sprawled in the straight-back chair that rears back on its hind legs.

NPR: Excerpt: 'Nobody's Baby'

Should I ever fall on hard times, it's reassuring to know: There's a straight-back chair waiting for me.

WSJ: One Night in the HELP Women's Shelter