Interpretation of words in couplet

Couplets presented to celebrate. Liang Bin's "Red Flag Spectrum" 40: "Zhang Jiaqing is the only son of the Zhang family. When his mother gave birth to him, he sang two big plays and covered half the street with happy couplets. " Xinmin Evening News1991.10.30: "Hu Wensui, a famous calligrapher in Shanghai, was overjoyed to learn that Xie Jun won the championship, and happily wrote a congratulatory couplet:' Jade Bureau celebrates Xie's final capture of deer, and Xinsonggao thousands of feet celebrates the founding of the country'." "