megaphone

扩音器，喇叭筒英释中释na piece of equipment like a large horn which you talk through to make your voice sound louder, when you are speaking to a crowd

用扩音器对…讲话中释vt

用扩音器传达中释vi

1 The Mega-Sonic Scatter-Cat Repeller looks like a megaphone because it actually is one..这个超音波驱猫器看上去像个扩音器，因为它的确是的。

2 With a price tag estimated in the billions of dollars, the new Xinhua is an expensive megaphone..据估计，新的新华社的市值为数十亿美元，看起来就像是一只昂贵的扩音器。

3 There was just one announcement over the megaphone, about 30 minutes before the ship tilted to its side..船上只用扩音器通知了一次，约30分钟后船就向一边倾斜。