One morning, I see the moon in the blue sky while the sun is already up. It looks pale and thin, like a fingerprint on glass. I wonder why it is still there.
一天早晨，太阳已经升起，我却看见月亮挂在蓝天里。它颜色淡淡，细细的，像玻璃上的指纹。我想知道它为什么还在那里。
The moon does not make its own light. It reflects sunlight. As it circles Earth, we see different amounts of its bright side. Sometimes it rises at night; sometimes it rises during the day.
月亮不会自己发光，它反射太阳的光。当它绕着地球转时，我们看到的亮面大小会变化。有时它在夜里升起，有时它在白天升起。
This morning moon is not a mistake. It is simply finishing its journey across our sky. Tonight, it will sink below the horizon, and the stars will have the darkness to themselves.
清晨的月亮并不是错误。它只是正走完横跨天空的旅程。今晚，它会沉到地平线以下，把黑暗留给星星。