| 单词 | breakthrough |
| 释义 | breakthroughbreakthroughsbreakthroughbreakthrough /ˈbreɪkθruː/ noun [countable] an important new discovery or developmentbreakthrough inPolice have made a breakthrough in their hunt for the killers.makekiller 警方追捕杀人凶手取得了突破性的进展。 |
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