yuān sǒu
lit. abyss and marsh, meeting place of fish and beast
fig. breeding ground of crime
robbers' hide-out
den of thieves
hotbed of vice
sink of iniquity
yán tán lín sǒu
articulate in speech (idiom)
eloquent
zōng sǒu qú
(bird species of China) rufous-tailed scrub robin (Erythropygia galactotes)
huī xiōng sǒu méi
(bird species of China) Emei Shan liocichla (Liocichla omeiensis)
huī tóu sǒu méi
(bird species of China) red-faced liocichla (Liocichla phoenicea)
hóng chì sǒu méi
(bird species of China) scarlet-faced liocichla (Liocichla ripponi)
huáng zhì sǒu méi
(bird species of China) Steere's liocichla (Liocichla steerii)