Pǔ kǒu
Pukou district of Nanjing City 南京市 in Jiangsu 江蘇|江苏
kǒu kou shēng shēng
to keep on saying (idiom); to repeat over and over again
shēng kou
animals used for their physical strength (mules, oxen etc)
beast of burden
rán kou
artificial beard worn by Chinese opera actors