conversation piece

conversation-piece的词性：
n.（名词）

1. An unusual object that arouses comment or interest.
话题：一件能引起评议或兴趣的不寻常物体

2. A genre painting, popular especially in the 18th century, depicting a group of fashionable people.
风俗画：一种绘画体裁，尤其盛行于18世纪，多描绘一群时髦人物