解釋：
breakthrough 英[?bre?kθru:] 美[?brek?θru]
n. 突破; 穿透; 重要技術成就; 爐襯燒穿;
[例句]The company looks poised to make a significant breakthrough in China
這家公司看來很有把握在中國取得重大突破。
The breakthrough came hours before a UN deadline.
在聯合國的最後期限到來前數小時取得了重大突破。
This may have been an improvement, but 'breakthrough' was an overstatement
這算得上是壹個改進吧，但說是“突破”就言過其實了。
If such materials became generally available to the optics industry the payoffs fromsuch a breakthrough would be enormous
如果這些材料能夠普遍用於光學產業，那麽這壹突破帶來的收益將非常巨大。
With breast cancer, as with many common diseases, there is no obviousbreakthrough on the horizon
對乳腺癌等很多常見疾病來說，目前還看不到有明顯的突破。