armband

详细解释:n. 臂章

英语解释：

名词 armband:

worn around arm as identification or to indicate mourninga band worn around the upper arm

例句：

Conventional outward signs of grief for the dead, such as a black armband or black clothes.戴孝为哀悼死者而采用的一种传统的标志，如戴在臂上的黑纱或黑衣服