英文中，"arm" 表示胳膊，"body" 表示身体。
"Arm" 来源于古英语 "earm"，意思是 "前臂" 或 "手臂"。它的词根 "ar-" 源自拉丁文 "armus"，意思是 "臂"。
"Body" 来源于拉丁文 "corpus"，意思是 "身体" 或 "尸体"。
下面是一些用 "arm" 和 "body" 的英文例句及其中文翻译：
She has a tattoo on her arm. (她的胳膊上有一个纹身。)
He flexed his arm muscles. (他挺直了自己的胳膊肌肉。)
I scratched my head with my arm. (我用胳膊挠了挠头。)
The body was found in the river. (尸体在河里被发现。)
He has a strong body. (他有一个强壮的身体。)
She massaged her temples with her fingers, then let out a deep sigh and closed her eyes, letting the tension in her body dissipate. (她用手指按摩眉心，然后长叹一声，闭上眼睛，让身体上的紧张感消散。)