You don't even know the meaning of "Yushan" and "Yaotai Moon". Qunyushan refers to Tianshan Mountain (Kunlun Mountain), which is rich in jade, beautiful and delicate, and intended to be as beautiful as jade. Yaotai, that is, Yaochi, refers to Tianchi (it is said to be Kunlun River), and Yaotai Moon is the moon of Yaochi, crystal clear, which means beautiful as the water moon.
Qunyushan and Yaochi are legendary places where immortals live. On the surface of the poem, if you didn't see such a beautiful scenery on the Jade Mountain, you must have met it under the moon in Yaochi. It means that a beautiful woman's face is like jade, like water and moon, and more like a fairy coming down to earth.