The world has turned topsy-turvy in my lifetime.在我的一生中世界已经变得一团糟。Everything's topsy-turvy in my life at the moment.现在我的生活全都被打乱了。He left his room all topsy - turvy.他把他的房间弄得乱七八糟....
Objective : To investigate the value of acoustic immittance in the diagnosis of middle ear effusions.目的: 探讨声导抗测试对分泌性中耳炎的诊断价值.This paper presents the development of acoustic immittance apparatus and application in diagnos...