vi.

1. 低声嘀咕，嘟嚷
   The old woman muttered to herself.

   这位老妇人喃喃自语。

   Mr. Morgon did not look up from his maps, but he muttered a greeting.

   摩根先生看着地图，没有抬起头来，但是他低声招呼了一声。

2. 抱怨[（+at/against）]
   Some staff members are beginning to mutter about the new President.

   有些职员开始抱怨新任的总经理。

vt.

1. 低声含糊地说
   The surgeon muttered his dissatisfaction.

   外科医生低声发泄他的不满。

2. 抱怨地说

n.

1. 嘟嚷；抱怨[S]
   We heard a mutter of discontent.

   我们听到有人窃窃私语表示不满。

v.

n.