英 [ˈɡrʌmblɪŋ] 美 [ˈɡrʌmblɪŋ]
n. 咕哝；（集体的）隐隐的不满；隆隆声
adj. 出怨言的，喃喃鸣不平的
v. 发牢骚；发轰隆声；（内脏）间歇性地闹病（grumble 的现在分词）
grumble /ˈɡrʌmbəl/ CET6+ TEM4 [ grumbling grumbled grumbles ]
及物动词/不及物动词 If someone grumbles, they complain about something in a bad-tempered way. 抱怨
They grumble about how hard they have to work.
他们抱怨自己工作得很辛苦。
Taft grumbled that the law so favoured the criminal that trials seemed like a game of chance.
塔夫脱抱怨法律如此有利于罪犯，使得审判看来像是一场运气的游戏。
可数名词 Grumble is also a noun. 抱怨
My only grumble is that there isn't a non-smoking section.
我惟一的抱怨是这儿没有无烟区。
不及物动词 If something grumbles, it makes a low continuous sound. 隆隆作响
It was quiet now, the thunder had grumbled away to the west.
现在安静了，雷声已经隆隆作响地传到西边了。
单数型名词 Grumble is also a noun. 隆隆响声
One could often hear, far to the east, the grumble of guns.
人们经常可以听到在远远的东边有隆隆的枪炮声。
continuous full and low-pitched throbbing sound
同义词： rumbling
muttering discontentedly
the grumbling boarders requested a meeting with the cook
周二和周一（2月15日），赌场内外都被赌客挤得水泄不通，不少赌客因等候时间太长而怨声载道(Grumbling)，与周三早上的情景判然有别。
... tap into v. 接入 grumbling adj. 嘟嘟囔囔的, 抱怨的; 疼痛的 converge v. 会聚，会合 ...
... grumbler 爱抱怨的人 grumbling 鸣不平的 grumblingly 报怨着 ...
喃喃鸣不平的(grumbling), 此释义来源于网络辞典。
Although he was only grumbling, his choice of words made Rodney angry.
尽管他只是在发牢骚，但他所用的字眼却让罗德尼很生气。
Nothing pleased him. He was always grumbling.
没有什么能使他满意，他总是发牢骚。
They kept grumbling that they were cold.
他们不停地嘟囔着说冷。
And there will be grumbling on the left if you want to get something done, but they ultimately need almost all of their party because they are going to get almost no Republicans to come along with them.
VOA : standard.2009.09.28
But so far nobody, despite much grumbling, has shown that Google is abusing that power.
All exporters are grumbling, but miners, despite efforts to hedge against currency swings, seem especially pained.
ECONOMIST: From a royalties bill, the strong rand and lawsuits
The future may mostly hold a lot of grassroots grumbling and much grinding of GOP wheels.
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