中秋节在农历八月十五。

The Mid-Autumn Festival falls on the 15th day of the eighth ___lunar ___month.

农历新年是根据月亮的周期来确定的。

The ___lunar New Year is determined by the cycles of the moon.

科学家正在研究如何在月球表面建立月球基地。

Scientists are studying how to establish a ___lunar base on the moon's surface.