arm tie

例句：

1. 1. She wore a colorful arm tie to match her outfit.
   她戴着一条色彩鲜艳的臂带，以搭配她的服装。
2. 2.The policeman used his arm tie to restrain the suspect.
   警察用他的臂带来制止嫌疑人。
3. 3. The band's arm tie was designed to keep their instruments in place.
   乐队的臂带设计用来固定他们的乐器。