It includes posing problem, research significance, studying methods, learning the source of theory.

问题的提出，研究的意义，研究方法，理论探源。

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Posing new problem in solving the problem.

在解决问题过程中产生新问题。

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Languages without specifications such as Ruby are posing a particular problem for people trying to port them, especially when a clean-room implementation is desired.

Ruby之类没有规范的语言给试图移植它的人带来麻烦，尤其当需要完成一个净室实现的时候。

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Peer, who was refused entry to the United Arab Emirates for last year's tournament, is posing a security problem for organizers, who have scheduled her matches on an outside court with restricted access.

CNN: STORY HIGHLIGHTS

With language access posing a critical problem, beginning in 1999, we organized to win translation and interpretation in multiple levels of government and society so that immigrants can fully participate, stay healthy, and care for their children.

WHITEHOUSE: Sanctuary for Immigrants

Despite falling behind so early, Shakhtar gave a good account of themselves in the opening stages, with Willian's pace down the left testing Alves and Luiz Adriano posing a constant problem as the focal point of the visitors' attacks.

BBC: Barcelona 5-1 Shakhtar Donetsk