They used special lighting to study the work and discovered there were two images, not one.

他们用特殊的灯光研究了这幅作品，发现这幅作品透出两种图像，而不是一种。

There's lots of loud music and special lighting, and, of course, clothing.

有很多响亮的音乐和特殊的灯光，当然还有衣服。

" There's soft background music. There's special lighting. There are all sorts of bells being used, " says Dr. Hirsch." Why not smells? "

“温和的背景音乐、特殊灯光、各种铃铛都能使用，为什么气味不能用？”