Longitudinal box horse straddle is a difficulty problem in the teaching of physical education in high school.

纵跳箱分腿腾越是中学体育教学中的难点问题。

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It is a difficulty problem that how to improve the recall and the accuracy ratio simultaneously on information searching.

为同时提高信息检索的查全率和查准率，提出一种基于语义依存度的句子相似度改进算法。

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Unfortunately, limited by the characteristic of real telephone channels, it has not completely solved the full-duplex difficulty problem up to now.

不幸的是，由于受实际电话信道特性的影响，该技术至今尚未完全解决这一全双工难题。

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So as you can see, as we escalate the problem difficulty, the difference between the good method and the not quite as good method gets bigger and bigger and bigger.

如你所见，当我们处理更复杂的,问题的时候，优良的算法,和并不那么好的算法之间的,差异会变的越来越大，这一点很重要。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the difficulty was basically the problem of duplication.

提出了一个难题，这难题就基于复制。

耶鲁公开课 - 死亡课程节选

In Healy's opinion, electronic gaming at a young age can lead to shorter attention spans, a lack of internal motivation, difficulty with problem solving and a lack of creativity.

FORBES: Baby Frankenstein

The company was already in some financial difficulty before the latest problem emerged.

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Signs there may be a problem include difficulty or pain when passing urine, the need to pass urine more often, broken sleep due to increased visits to pass urine, waiting for long periods before the urine flows and the feeling that the bladder has not emptied fully.

BBC: Prostate cancer 'diagnosed too late'