You live at the end of the Yangtze River (where did Li Zhiyi's sentence "operator") come from?

This sentence comes from Li Zhiyi's "Bu Operator".

The full text is:

I live in the upper reaches of the Yangtze River and you live in the lower reaches.

I miss you every day, but I can't see you, so I drink Yangtze River water. ?

The water of the Yangtze River flows eastward for a long time, and I don't know when it will stop, and neither will their lovesickness and parting hatred.

I only hope that your heart is the same as mine, and you will not live up to this mutual yearning.

Extended data translation:

I live in the upper reaches of the Yangtze River and you live in the lower reaches.

I miss you day and night, but I can't see you. You and I ... share a river and green water, we love each other and know each other.

When will the endless river dry up and the bitterness of parting stop?

I only hope that your heart is the same as mine and will not live up to my infatuation.

Brief introduction of the author

Li Zhiyi:1038-117, Duan Shu, a famous layman, was born in Didi, Cangzhou (now Shandong). Song Shenzong Chao Jinshi,

He worked in Dingzhou shogunate from Su Shi, and later transferred to editor of Privy Council. In the early years of Hui Zong, he was sentenced to Wen and demoted to Taiping Prefecture.

Officials finally discuss doctors. Ci is famous for its short poems, including Gu Xi Ci.

Source: Jun lives at the end of the Yangtze River (Li Zhiyi's poem "Bu Operator") _ Baidu Encyclopedia