✔ 最佳答案
-grumble (verb)
1 to complain about someone or something in an annoyed way:
She spent the evening grumbling to me about her job.
[+ speech] "You never hang your coat up, " she grumbled.
2 If your stomach grumbles, it makes a low continuous noise, usually because you are hungry.
-grumble (noun) [usually plural]
a complaint:
If I hear any more grumbles about the food, you can do the cooking yourself!
-grumbler(noun)
a person who complains a lot