柯林斯词典loudhailer /ˌlaʊdˈheɪlə/ (also loud-hailer) (loudhailers) 1. N-COUNT A loudhailer is a device for making your voice sound louder in the open air. 擴音器[英國英語] A loudhailer blared warnings of a bomb scare. 擴音器大聲播報炸彈恐嚇的警告。 返回 loud hailer