很难保持专注。
金姆给了泽赫一些在家学习时如何保持专注的建议。
Kim gave Zech some advice about how to stay focused while doing school at home.
起初，这些都被定为短篇故事——早期的制片人怀疑观众至多能在一部电影的时间内保持专注。
Originally these were conceived as short stories — early producers doubted the ability of audiences to concentrate for more than the length of a reel.
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