-
1. The pre-lightener was installed to improve the lighting quality in the classroom.
预照明器被安装来改善教室的照明质量。
-
2. The pre-lightener is a device that can adjust the brightness of the light before it reaches the eyes.
预照明器是一种可以调整光线到达眼睛前的亮度的设备。
-
3. The pre-lightener is an essential tool for outdoor activities, as it helps to illuminate the area beforehand.
预照明器是户外活动必备的工具，因为它有助于提前照亮区域。