Now this can actually take a while to watch but you'll see that the numbers are moving into position.
现在大家可以观察一会儿,你会发现,数字都被移动到了合适的位置。
They were speeding the mail so that it didn't have to wait to sort it before it went on the train-- it was sorted while it was moving on the train.
发信速度很快,以致于在上火车之前不再需要,等着分类整理-,可以边坐火车边整理。
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