luminous watch

例句：

1. 1. The moon is luminous in the dark night.
   在黑暗的夜晚，月亮是发光的。
2. 2. The starsare luminous when they are visible.
   当星星可见时，它们是发光的。
3. 3.The sun is luminous and warmduring the day.
   太阳在白天是发光且温暖的。