From customers'perspectives, Internet has reduced space limitation they are facing.

从消费者的角度来说, 网络减少了他们现在所受到的严格的时空限制.

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Because of space limitation, generally only jump, jump, pole vault , and shot put are held indoors.

出于面积有限, 室内田赛仅有跳高, 跳远, 撑杆跳和铅球投掷.

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