This photograph is reproduced as a negative to show the glass image as a positive.

这张照片被复制成正片一样，实际上是显示玻璃影象的负片。

youdao

This photograph is reproduced as a negative to show the glass image as a positive.

这张照片被复制成正片一样，实际上是显示玻璃影象的负片。

youdao