我的手臂在锻炼后有点疼。
My ___arm hurts a bit after the exercise.
医生检查了我的手臂。
The doctor checked my ___arm.
她摔倒了,摔伤了胳膊。
She fell and hurt her ___arm.
游泳是锻炼手臂的好方法。
Swimming is a good way to exercise your ___arms.