Eng: Mumble...

咕

Mumble, Mutter

唸

Chant, Mumble, Read, Recite, Study

喃

Mumble

嚅

Mumble

哩

Mumble, One Mile

訥

Mumble, Slow, Speak, Stammer

咕嚕說

Mumble, Mumbled, Mumbles, Mumbling

含糊說話

Mumble, Mumbled

(Vague, Speak)