1, the sun and the moon remain the same, China idiom. Pinyin is rì shēng yuè héng é ng, which means just like the sun just rises and the moon rolls up for the first time. Metaphor when things are booming; In ancient times, it was often used as a eulogy. From The Book of Songs Xiaoya Tianbao.

2, idiom notes: Heng: the sound "more", the moon wind.

3. Idiom source: The Book of Songs Xiaoya Tianbao: If the moon remains unchanged, the sun rises.