ObjectiveTo investigate the clinical characteristics and therapeutic results of malignant tumors of ceruminous external auditory canal. 目的探讨外耳道耵聍腺源性恶性肿瘤的临床特征和治疗效果.
It was not until 1974 that his ability to write gelled again.直到1974年，他的写作才华才又得以发挥。Not until last week was the project in full blast.工程直到上星期才全部开工.It was not until yesterday that I learned it.顶昨天我才听说这件事....