另一方面，想象一下，如果没有超速罚单和停车罚单，会减少多少当地警察执法的成本和城镇预算。
On the other hand, imagine the cost savings for local police enforcement and town budgets with-out all those speeding and parking tickets.
当地木匠对原设计的修改缩短了生产时间和成本。
Modifications to the original design by local carpenters cut production time and costs.
另一方面，想象一下，如果没有超速罚单和停车罚单，当地警察执法和城镇预算将会节省多少成本。
On the other hand, imagine the cost savings for local police enforcement and town budgets without all those speeding and parking tickets.
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