注意力是一件很了不起的事，但并不是在整个视觉领域或是你想做的每件事都需要它。

And attention is a great thing, but it doesn't necessarily spread over the entire visual field or everything you want to do.

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而从伊拉克回国后大约75天再次接受测试，受试者在注意力、语言学习和视觉空间的测试上表现明显下降。

But when tested again about 75 days after returning from Iraq, they scored significantly worse on tests of attention, verbal learning and visuospatial memory.

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如果你是视觉分散的或者左右环视房间，倾听者（貌似应该是演讲者，估计原文有误）就觉得不被赞同或者你的注意力不在他这里。

If you are visually distracted and darting your eyes around the room, the listener is likely to feel unsupported and will feel your attention is somewhere else.

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