of the arm; on the arm
ではその腕のアザは?
Then what about that bruise on your arm?
— Carandiru (2003)
腕の調子は?
How is your arm feeling?
— Бриллиантовая рука (1969)
あんたが叩いた腕のとこ、超痛いんだけど。
My arm really hurts where you hit it.
腕の位置は?
Where should the arms be positioned?
— 燃ゆる女の肖像 (2019)