A brooch is a small piece of jewellery which has a pin at the back so it can be fastened on a dress, blouse, or coat.
英汉词典释义
n.
胸针, 饰针
a silver brooch with ruby insets镶嵌红宝石的银胸针The brooch has little intrinsic value.这枚胸针没有一点实质的价值。Her brooch caught the rays of the setting sun.落日余晖照射在她的胸针上。She was wearing a small silver brooch.她戴着一枚银质的小胸针。