moon phase finger

例句：

1. 1. The moon phases can be used to predict the weather.
   月相可以用来预测天气。
2. 2. She wore a moon phase ring on her left hand.
   她左手佩戴着一个月亮形的戒指。
3. 3.He kept a record of each month's moon phases for his research.
   他记录了每个月的月相，以便他的研究。