被拍照的人用英语可以翻译为 "the person being photographed". 这个词的来源可能源自于 "photograph" 这个词本身，它由希腊语 "photos" 和 "graphein" 组成，意思是 "pght" 和 "drawing"。因此，"the person being photographed" 可以理解为 "正在被拍照的人"。
一些英文例句和中文翻译如下：
The person being photographed should smile for the camera. (被拍照的人应该对着相机微笑。)
The person being photographed must remain still during the exposure. (被拍照的人在曝光过程中必须保持静止。)
The person being photographed should try to look natural and relaxed. (被拍照的人应该尽量看起来自然和放松。)