他右臂受伤用英语怎么说

"He has an injury to his right arm" 是表示他右臂受伤的英文表达方式。
"Injury" 是指人身受伤，可以用来描述身体某一部位受到的伤害。"Right arm" 则是指他的右臂。
下面是一些英文例句，并附上中文翻译：
He fell and hurt his right arm. 他摔倒了，伤了他的右臂。
She broke her right arm while skiing. 她在滑雪时扭伤了她的右臂。
He twisted his right arm when he fell off his bike. 他从自行车上摔下来时扭伤了他的右臂。
希望这些信息能帮到你。