呟く

(1)speak softly or indistinctly; "She murmured softly to the baby in her arms"

(2)穏やかに、または、不明瞭に話す

(3)make complaining remarks or noises under one's breath; "she grumbles when she feels overworked"

(4)不平を言うあるい小さな声で騒ぎ立てる

(5)talk indistinctly; usually in a low voice

(6)通常低い声で

(7)issue a grunting, low, animal-like noise; "He grunted his reluctant approval"

(8)のどの奥からうめくような、低い、動物のような音を出す

(1)