jīng jīn jì
Jing-Jin-Ji (Beijing, Tianjin and Hebei Province)
京
jīng
abbr. for Beijing 北京[Bei3 jing1]
津
jīn
abbr. for Tianjin 天津[Tian1 jin1]
冀
jì
short name for Hebei 河北[He2 bei3]
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