Sun, This is the largest source of light for the Earth., Opaque, These are the objects which block light., Glass, It is an example of a transparent object., Reflection, This is the other name of bouncing off., Flash-light, It is an example of a man-made source of light..

Light

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？