The painting, whose cryptic smile lures millions of visitors to the Louvre, is displayed behind glass to protect it from climatic changes and camera flashes.

• 《蒙娜丽莎》陈列在玻璃罩内，以防止气候变化和照相机闪光灯带来的损害，她的神秘微笑吸引了无数游客来卢浮宫参观。