If the student has shoulder issues (such as rotator cuff injuries), she may not want to raise arm to beside the ear or let it float. Arm can be bent or supported by a bolster.

如果学员有肩部问题 （例如肩袖损伤）， 她可能不想抬高手臂靠近头部或把手臂放平。 手臂可以弯曲或垫上长枕。

youdao

And it was perhaps unrealistic for Sony Ericsson to try to float at arm's length from its parents.

CNN: Mark Milian,

PricewaterhouseCoopers may now float off its consulting arm.

ECONOMIST: Strength in numbers