kǒu chǐ qīng chu
clear diction
clear articulation
口
kǒu
mouth
齿
chǐ
tooth
清
qīng
(of water etc) clear; clean
楚
chu
abbr. for Hubei 湖北省[Hu2 bei3 Sheng3] and Hunan 湖南省[Hu2 nan2 Sheng3] provinces together