illutation

例句：

1. 1.The teacher demonstrated the use of a projector during the class.
   老师在课上演示了投影仪的使用。
2. 2. The illumination from the streetlights illuminated the pathahead.
   街灯的照明照亮了前方的道路。
3. 3. The illumination of the starsabove helped me to find my way home.
   星星的照明帮助我找到了回家的路。