con·ver·sa·tion piece
noun/ˌkɒnvəˈseɪʃn piːs/
/ˌkɑːnvərˈseɪʃn piːs/
- an object that is talked about a lot because it is unusual
（因不寻常而成为）话题；谈资 - (art) a type of painting in which a group of people are shown in the countryside or in a home
人物风俗画；乡村（或室内）风情画