望断南飞雁 (望斷南飛雁) wàngduàn nán fēi yàn

wàngduàn nán fēi yàn phrase the wild geese flying south are out of sight
Domain: Modern Chinese 现代汉语
Notes: From 清平乐 六盘山 Pure Serene Music: Spiral Mountain (Mao Zedong 2020, Illustrated Poems of Mao Zedong, trans. by Xu Yuanchon, p. loc. 504)