When this glass was backed with a covering of lead or tin, a mirror reflecting at least some truth as to color resulted, but not so much could be said for the truth in respect to the form of its reflections.
英
美
- 当这种玻璃背面涂上一层铅或锡时就成了镜子,这种镜子至少反映出了各种颜色的一些真实情况,但就反映的形状而言,并无真实可言。