The Vietnamese word "lẩm bẩm" is a verb that means "to mumble" or "to speak softly in a way that is difficult to hear or understand." It is often used when someone is talking quietly to themselves or muttering under their breath, usually in a way that expresses frustration, dissatisfaction, or deep thought.
"Lẩm bẩm" is a useful word in Vietnamese that describes the act of mumbling or speaking softly, often reflecting a person's internal thoughts or feelings.