chéng > kǒu chǐ qīng 
nínshìfǒuzàixúnqiú:口齿口齿清晰口齿 口齿清晰gèngduōjiéguǒ...
mùlù
yīngwénjièshì
  1. v.:   talk distinctly,  clear enunciation
bāo hán cí
kǒu chǐ qīng de