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杰克:
How fast were you going? 
你刚刚车速多少?
凯特:
Well it was about 50 mph or less. I was driving very slowly.
大概50公里/小时或更慢吧.我当时开得很慢.
杰克:
50 mph? Don`t you know the speed limit downtown is 40 mph? All right. That`ll be one hundred dollars.
公里/小时?你知道市区限速40公里/小时吗?好吧.一百美元罚金.