/ˈgrʌmbl ||; ˈgrʌmbḷ/verb [I] to complain in a bad-tempered way; to keep saying that you do not like sth 埋怨；抱怨: The students were always grumbling about the standard of the food. 学生老在埋怨伙食差。 People usually grumble or moan when something is not as good as they expect. If they want to take positive action they complain to somebody in authority. 人有不满时通常会埋怨（grumble或moan）。若要采取积极行动就向当局申诉（complain）。 grumble noun [C]