His spinal cord tumor had been removed through a new technique pioneered by Fred J. Epstein, a pediatric neurosurgeon at the New York University Medical Center in Manhattan.是什么意思_His spinal cord tumor had been removed through a new technique pioneered by Fred J. Epstein, a pediatric neurosurgeon at the New York University Medical Center in Manhattan.在线翻译_英语_读音_用法_例句