v. speak softly or indistinctly
v. make complaining remarks or noises under one's breath
n. 低语, 低声的怨言
vi. 低语, 低声而言
vt. 低声说
1. The teacher spoke in a soft murmur so the students could listen carefully.
老师轻声低语，让学生们能认真听讲。
2. I could hear a murmur of voices coming from the other room.
我能听到另一个房间传来的低语声。
3. She felt a murmur of excitement as the concert was about to begin.
演唱会即将开始时，她感到一阵兴奋的低语。