plaque
noun uk/plɑːk/ /plæk/ us/plæk/
(FLAT OBJECT)
[ C ]铭牌;匾牌
a flat piece of metal, stone, wood, or plastic with writing on it that is attached to a wall, door, or other object
There was a brass plaque outside the door listing the various dentists' names. 门外有一块铜牌，上面列着各位牙科医生的名字。
The First Lady unveiled a commemorative plaque. 总统夫人为一块纪念匾牌揭了幕。
See also: plate noun (FLAT PIECE)
blue plaque UK 名人故居标示牌;纪念匾
a plaque on the wall of a house that shows that someone famous once lived there
The blue plaque said "Charles Darwin, biologist, lived here." 纪念匾上写着“查尔斯•达尔文，生物学家，曾经居住于此。”
The photographer was recognized by having a blue plaque on his former home.
A blue plaque testifies that Radclyffe Hall once lived here.
She unveiled a blue plaque at the former home of her mother, Sylvia Plath.
We walked along the road, staring up at the blue plaques.
(SUBSTANCE)
[ U ]齿菌斑，牙斑
a substance containing bacteria that forms on the surface of teeth
Bacteria attaches to the surface of teeth and forms plaque.
Braces can make it difficult to remove plaque from your teeth.