Antihistamines are the medications most commonly used to diminish allergic symptoms.抗组胺药是药物最常用的,以减少过敏症状.Cough suppressants and some antihistamines may help quiet an annoying cough.镇咳药和一些抗组织胺类药物能帮助驱除烦人的咳嗽.In the past, par...
electric megaphone喊话器Somewhere a voice is loud a megaphone.远处什么地方的扩音器里传来响亮的声音.A megaphone boomed out, "This is the police."扩音器响了起来：“我们是警察。”transistor megaphone晶体管扩音器He hawks with a megaphone, saving a lot of effort.他用喇叭筒...