But because of a revival of protectionism in the 1970s and '80s, problems began to develop.

但是由于七十年代和八十年代保护主义重新抬头，问题开始出现。

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However, its problems began when sharp-eyed players noticed that the fifteen years it had taken to develop had apparently not left enough time to create backgrounds, which had been lifted from The Elder Scrolls: Oblivion, World of Warcraft, Thief: Deadly Shadows and elsewhere.

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