他 / 抬手 / 时 / 宽大的 / 袖管 / 滑到 / 手肘处 / 露出 / 了 / 手腕他抬手时,宽大的袖管滑到手肘处,露出了手腕。When he raised his hand, the loose sleeve slid down to his elbow, exposing his wrist.