breakthrough英[ˈbreɪkθru:]美[ˈbrekˌθru]n.突破; 穿透; 重要技术成就; 炉衬烧穿;常用短语搭配：动词+～achieve a breakthrough取得进展make a breakthrough取得进展形容词+～dramatic breakthrough戏剧性的突破major breakthrough重要突破medical breakthrough医学发现～+介词breakthrough in在…方面的进展例句：Scientists have made a breakthrough intheir treatment of that disease.科学家在治疗那种疾病方面已有突破。

To try and explain his great breakthrough.尝试解释他的重大突破。