megaphone
noun [ C ] uk/ˈmeɡ.ə.fəʊn/ us/ˈmeɡ.ə.foʊn/ (UK also loudhailer)
喇叭，话筒，扩音器
a cone-shaped device that makes your voice louder when you speak into it, so that people can hear you although they are not near to you
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。