rhubarb
noun uk/ˈruː.bɑːb/ us/ˈruː.bɑːrb/
(FOOD)
[ U ]（可食用的）大黄
a plant that has long, sour-tasting red and green stems that can be cooked and eaten as a fruit
Have you ever eaten rhubarb crumble? 你吃过大黄酥皮甜点心吗？
(ARGUMENT)
[ C ] US old-fashioned slang喧哗，吵闹
a loud argument
rhubarb
exclamation uk/ˈruː.bɑːb/ us/ˈruː.bɑːrb/
（演员模仿人声嘈杂时用的词）
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
We had to stand at the back of the stage saying "rhubarb, rhubarb" in the crowd scenes. 演到人多嘈杂的场景时，我们都得站在台后模仿“嗡嗡”的嘈杂声。