v.喃喃而语；咕哝（动词mumble的过去式和过去分词）
He mumbled a few words and left. 他咕哝了几句便走了。
The old woman mumbled a prayer. 这位老妇人咕哝着作祷告。
He mumbled something to me which I didn't quite catch. 他对我叽咕了几句话，可我没太听清楚。
