单词：leap forward
leap forward的用法和样例：
例句
- In the last few years,this art has made a big leap.近几年来，这一艺术有了新的跃进。
- If one day we can cure cancer, it would be a quantum leap in medicine.假如有一天我们能治好癌症，那是医药上的重大跃进。
单词：leap forward 相关文章
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