词汇	pure tone frequency
释义	pure tone frequency 医纯音频率
随便看	behind the ear aid behind-the-ear aid behind the ear hearing aid behind-the-ear hearing aid behind-the-ear hearing aid, BTE behind the ear hearing aids behind-the-ear hearing aids behind the eightball Behind the Scenes in Museums behind-the-scenes look behind-the-scenes master behind-the-scenes negotiation behind-the-scenes news behind-the-scenes practice behind the eight ball behind the eight-ball behind the eight halls behind the eyeball Behind the Eyeball Behind the farmhouse was a rice field behind-the-head dunk behind the hill Behind the house is a greenhouse behind their back behind their time