first aid illustration of a human arm with flexion of the joint to stop severe bleeding - 19th century - 肘 幅插畫檔、美工圖案、卡通及圖標傷口, 人體構造, 急救
cough or sneeze into elbow. round icon with long shadow on red or blue background - 肘 幅插畫檔、美工圖案、卡通及圖標咳嗽
