What does "Liu Zhu on the Moon" mean?

Cry tears at the moon.

From "Quiet Night" by Guo Moruo. The original poem is as follows:

The moonlight is faint,

shrouding the pine forest outside the village.

The white clouds are clustered together,

a few sparse stars leak out.

Where is Tianhe?

The distant sea fog is blurry.

Afraid that there will be sharks on the shore,

To Yue Liuzhu?

Guo Moruo (1892-1978), whose original name was Guo Kaizhen, also had the courtesy name Dingtang, nickname Shangwu, nickname Wenbao, pen names Moruo, Mike Aung, Guo Dingtang, Shi Tuo, Gao Ruhong, Yang Yizhi, etc. Born on November 16, 1892 in Shawan, Leshan, Sichuan. He graduated from Kyushu Imperial University in Japan. He is a modern writer, historian, one of the founders of new poetry, the first president of the Chinese Academy of Sciences, the first president of the University of Science and Technology of China, and the Soviet Academy of Sciences. Foreign academician.

In 1914, Guo Moruo studied in Japan and studied medicine at Kyushu Imperial University. In 1921, he published his first new poetry collection "Goddess"; in 1930, he wrote "Research on Ancient Chinese Society". 1949; Guo Moruo was elected chairman of the All-China Literature and Art Association.