921中国载人航天

简介：The word "liant" in the first couplet has the same pronunciation as "pity", which means that he felt deeply pitiful when he saw his son crying in sorrow; the word "li" in the second couplet has the same word as "li", which means that he is about to leave his son and feels unbearable sadness in his heart. This couplet, with its double entendre and rigorous dialogue, can be said to be eternal and unmatched by ordinary people.