We even tried building hierarchies with 2-3 levels, but the number of shortcuts grew too fast for higher levels if we generated a full graph inside each cluster.
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与小德一样，阿斌（化名）今年也是第一次开长途电车，只不过阿斌不是回自己家，而是回女朋友家。
Meanwhile, the back-end systems powering the venue, for cashless sales of merchandise and food, ticketing, or crowd control and safety, are also inter-connected.