She began to mutter under her breath.
To speak quietly and in a low voice, often in a way that is hard to hear.
I heard a mutter from the back of the room.
A quiet or low voice, often used to express dissatisfaction or complaint.
ด้วยพจนานุกรมภาพและแฟลชการ์ดที่ทรงพลังฟรี
