[ U ] a plant that has long, sour-tasting red and green stems that can be cooked and eaten as a fruit(可食用的)大黄
[ C ] US old-fashioned slang a loud argument喧哗,吵闹
a word that is repeated many times in order to produce the sound of people talking when the meaning of the word is not important(演员模仿人声嘈杂时用的词)
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