sandwich board
noun [ C ] uk/ˈsæn.wɪdʒ ˌbɔːd/ us/ˈsæn.wɪtʃ ˌbɔːrd/
三明治式广告牌，夹板广告牌（分别挂在胸前和背后的相连的广告牌）
a pair of connected boards that a person hangs over their shoulders and walks around with in public places to advertise something
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。