She caught me by the arm

问题描述:

She caught me by the arm
请问上面这句话的意思是[她用手捉住我]还是[她捉住了我的手臂]?
那么!我改一下She caught me by the hand 它的意思是[她用手捉住我]还是[她捉住了我的手]?

她捉住了我的手臂:
She caught me by the hand
意思是她捉住了我的手
[她用手捉住我]应该是:
She caught me with her hand