英语语法分析

A megaphone boomed out, "This is the police."

扩音器传出了低沉而响亮的声音：“我们是警察。”

《柯林斯英汉双解大词典》

It is a term for the Japanese words for "megaphone" and "translate", which actually makes g lot of sense because it's a megaphone that can translate Japanese into several other languages in real time.

它是日语中“扩音器”和“翻译”的意思，这其实很有道理，因为它是一种可以实时将日语翻译成其他几种语言的扩音器。

His megaphone helped spread the message.

他借助扩音器来传达信念。