1981年，43%的人们都说自己在过去一年中同警察有过接触，主要是在街道上问路；而到了2006年，这一比率下滑至27%，大部分还是因为犯罪。

In 1981 43% of people reported having contacted the police in the past year, usually just to ask directions in the street. By 2006 that had fallen to 27%, of whom most had reported a crime.

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黑人不像他们那么死板，他们愿意与白天接触的比率是白天愿意与黑人接触的十倍。

Black members were less rigid: they were 10 times more likely to contact whites than whites were to contact blacks.

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一般来说，在夏季，皮肤就变得敏感，在“皮肤接触性试验”中呈阳性反应的比率很高。

In general, in the summer, the skin becomes sensitive to the "skin test" in the positive rate is high.

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