He balanced the glass precariously on the arm of his chair.

他把杯子放在椅子的扶手上，随时可能摔下。

《牛津词典》

Patrick took her gently by the arm and led her to a chair.

帕特里克轻轻地扶着她的手臂，引她落座。

《柯林斯英汉双解大词典》

The master, throned on high in his great splint-bottom arm-chair, was dozing, lulled by the drowsy hum of study.

老师高高地坐在他那把大细木条扶手椅上，听着催人入睡的读书声，正打着盹。

youdao

The data affirms what even arm chair researchers and self-proclaimed experts know: social media is proliferating among adults.

FORBES: Social (Media) Climbing

For me that means arm-chair game design, all ideas and no results.

FORBES: Connect

And there are intriguing offerings such as the Sound Chair: I sat back in what felt like a dentist's recliner and put on earphones attached to an iPod on the arm of the chair.

FORBES: Belles and Whistles