local colour

音标发音

Local colour lends [adds] peculiar interest to the novel.
地方色彩给这部小说增加了兴味。
《新英汉大辞典》
The specific type of wood, Cedar, was then selected based on a number of factors; such as resistance to rot, aroma, colour, local sources, and quality.
雪松这一特殊的木材种类是基于以下因素而挑选的：防腐、木材的香气、颜色、本地资源以及品质。
The red carpet welcome is something the Queen has experienced all over the world but in Bermuda shocking pink was chosen to reflect the famous colour of the local beaches.
过去，女王造访世界各地时接受的都是红毯迎宾礼，而这回，为了反映出当地举世闻名的粉色沙滩，百慕大挑选了鲜粉红色。

AD, never lingers over local colour, but keeps a firm, if not wholly accurate, grip on the conflict at the heart of the drama—between General Maximus, who is Caesar's chosen successor, and the emperor's son Commodus, who will not let parricide or incest stand in the way of cementing a dynasty.
ECONOMIST: Hollywood
Wearing maroon jerseys (the only colour available at the local sporting-goods store), and with high-top shoes, leather maskless helmets and trousers padded with magazines, the Maroons beat the league's other strong team, the Chicago Cardinals, towards the end of the 1925 season.
ECONOMIST: An old wrong may be about to be righted
Not so China's poorer interior, where the dark colour of colas is associated with the dark tea traditionally used to mask the sediment in the local water.
ECONOMIST: Coca-Cola strikes it rich in Asia with a new drink

the special or unusual features of a place, especially as described or shown in a story, picture, or film to make it seem more real

Local colour is used to refer to customs, traditions, dress, and other things which give a place or period of history its own particular character.