常見例句In the early 1980s, Duffner conducted some of the first studies on the effects of radiation on the brains of children with brain tumors.上世紀(jì)八十年代初，杜夫納博士開展了一些關(guān)於放療對腦瘤兒童的大腦影響的前期研究。 返回 Duffner