保加利亚国家空间研究所科学家说，破译外星人发送给他们的一组复杂符号的工作正在进行中。

Work on deciphering a complex set of symbols sent to them is underway, scientists from the country's Space Research Institute said.

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非定量学科似乎有了个扬眉吐气的机会——过度依赖复杂符号和晦涩公式的危险这回算是暴露无遗了。

The non-mathematical appear to have their revenge, as the perils of over-reliance on complex symbolic notation and arcane formulae are relentlessly exposed.

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但不幸的是，简单的正则表达式并不满足于处理复杂的模式和符号。

Unfortunately, simple regular expressions are unable to cope with complex patterns and symbols.

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All of that somewhat complicates the picture, but at the same time, I think you can see that there is a connection between those semiotic systems.

这理解起来可能很复杂，但是你们还是能看到,这些符号系统间的一些联系。

耶鲁公开课 - 文学理论导论课程节选

And again, I'm going to do it with a little bit of abusive notation, and it's a little more complicated, but we can kind of look at. All right?

为了解决这个问题,我还是需要滥用一点符号，这有点复杂，让我们来看看吧，好不好？

麻省理工公开课 - 计算机科学及编程导论课程节选

this is perhaps the most interesting thing because it forces us to show the complexity, to see the complexity, of semiotic relationships: a red light, just to return to the Christian holiday, a red light on a Christmas tree.

现在我们讲到了一个耐人寻味论点,这个问题迫使我们要思考，符号系统之间复杂的联系：,当我们再圣诞节时看到红灯，圣诞树上的红灯。

耶鲁公开课 - 文学理论导论课程节选