【正确答案】The scientist had worked hard at the new material for 10 years before he made his own Way in the end.

【答案解析】[翻译指导] “有了突破”用词组to make one's own way来译。本句用before来引 导时间状语从句，但也可以用after引导的时间状语从句来翻译此句：This scientist made his own way in the end after he had researched into the new material for 10 years.