megaphone
/'megәfәun/
BNC词频: #33,089
当代词频: #21,670
中文释义
n. 扩音器
[医] 反射扩音器
英文释义
n. a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
n. 扩音器
[医] 反射扩音器
n. a cone-shaped acoustic device held to the mouth to intensify and direct the human voice