murmur a prayer 低声祈祷
softly murmured 轻声细语
murmured under one's breath 低声自言自语
A: Did you hear what he murmured?
A：你听到他低声说了什么吗？
B: No, he murmured it too softly.
B：没听到，他声音太轻了。
1) 低声说话
2) 发出嗡嗡声
3) 表达不满或抱怨
1. 低语；轻声说
verb
1. To speak in a very quiet or soft voice.
Synonym: whisper, mutter