手臂胳膊的英语怎么说

手臂胳膊在英文中通常被称为 arm。
这个词来源于古英语 "earm"，意思是 "手臂"，"胳膊" 或 "臂"。
下面是一些例句和中文翻译：
He broke his arm when he fell off his bike. 他骑自行车摔倒时手臂折断了。
She has a tattoo of a rose on her arm. 她的胳膊上有一个玫瑰纹身。
He used his arm to shield himself from the rain. 他用手臂挡住雨。