Definition: to speak quietly so that you can only be heard by someone near you Level: C2
“现在去睡觉吧，”她低声说。
"Go to sleep now," she ___murmured.
他低声说了几句同情的话。
He ___murmured a few words of sympathy.
“他们太不专业了，”他自言自语地低声说。
"They're so unprofessional," he ___murmured to himself.
