Literature Reference: 肃肃兔罝，椓之丁丁。—— 《诗经·周南·兔罝》 The solemn rabbit nets are set, with the sound of hammering. Source from 'The Book of Songs'.
肃: Respectful, solemn, and earnest.
肃: Respectful, solemn, and earnest.
Meaning: Solemn and dignified, symbolizing rigor and reverence.