This discovery was perceived as a major breakthrough.
这一发现被视为一项重大突破。
这是一项重大突破。
这是一个重大突破！
Scientists made a major breakthrough in cancer treatment.
科学家们在治疗癌症方面取得了重大突破。
Scientists have made a major breakthrough in the treatment of cancer.
科学家在治疗癌症方面取得了重大突破。
They say this is a major breakthrough in cancer research.
有人说，这是癌症研究中的重要突破。
A major breakthrough has been achieved in cancer research.
癌症研究方面取得重大突破。
Getting a gold medal on track and field was a major breakthrough for China.
在田径项目取得金牌，是中国一个重大突破。
But a major breakthrough came in 1971 when microprocessors came into being.
但是主要是在1971年微处理机开始出现时才有了突破。
There has been a major breakthrough in the reform of the telecommunications system.
中国电信体制改革也取得重大突破。
Finding water on Earth's natural satellite is a major breakthrough in space exploration.
在空间探索领域，寻找地球的天然卫星的水是一个重大的突破。
Finding water on Earth's natural satellite is a major breakthrough in space exploration.
在空间探索领域，寻找地球的天然卫星的水是一个重大的突破。
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