Don't expect telecoms to beat down the doors for dark pulse lasers, however, said Purdue University's Andrew Weiner, an expert on ultra-fast optics.
然而，美国普渡大学的超高速光学专家安德鲁·韦纳说，不要指望电信业者会为暗激光器敞开大门。
The future is dark, yet Lauren stays cheerful and Patrick has a quiet confidence that he'll beat the disease.
未来是暗淡的，但劳伦保持着安静乐观的心态，帕特里克也十分有信心战胜疾病。
We had just made it up the precipitous cliff by the channel mouth when the day became dark, and raindrops the size of hailstones began to beat down to the accompaniment of a howling wind.
山路愈陡愈狭，我们刚到了峡口悬崖之上，周围一下昏暗起来，雹子大的雨点随着狂风猛扑而下。
Andy: Yes. But Qatar also can wear their silver MEDALS with immense pride, it is really a dark horse, it beat Iran in a nail-biting battle in the other semi-final.
安迪：是啊。但是卡塔尔队员获得银牌，也非常自豪。这个队真是一匹黑马，它在半决赛中打败了伊朗队，这场比赛真是扣人心弦。
They beat about in the dark for a long time, but the missing child was nowhere to be found.
他们在黑暗里搜寻了很久，但到处都找不到那走失的孩子。
They beat about in the dark for a long time, but the missing child was nowhere to be found.
他们在黑暗里搜寻了很久，但到处都找不到那走失的孩子。
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