blue plaque
noun/ˌbluː ˈplæk/, /ˌbluː ˈplɑːk/
/ˌbluː ˈplæk/
- any of the round blue notices that are attached to the front walls of houses, especially in London, to show that a famous person once lived there.
蓝牌匾：贴在房屋前墙上的任何圆形蓝色告示牌，尤其是在伦敦，以表明一个有名的人曾经住在那里。