| 例句 |
In ten years, homicide rates tripled and suicide rates quadrupled.十年里杀人案发生率增加了两倍，自杀率增加了三倍。There is a close association between travelling speed and crashes.行车速度和撞车发生率密切相关。There is growing alarm at the amount of violence on the streets of our city.我市街头暴力事件的发生率越来越惊人。As there are fewer teenagers, the crime rate may go down. The same holds true for traffic accidents.十几岁的青少年较少，犯罪率有可能下降。这情况同样适用于交通事故发生率。In the report, the incidence of violent crime is consistently understated.报告里，暴力犯罪的发生率一贯被少报。Accidents have become less frequent, thanks to recent improvements in our safety checks.由于我们近来改进了安全检查，事故的发生率降低了。These incidents have increased in frequency.这些事件的发生率上升了。The relative frequency of this illness in the area is of concern to all doctors.所有的医生都关注这种病在该地区相对频繁的发生率。The occurrence of the disease is apparently related to standards of hygiene.这种病的发生率显然与卫生状况相关。 |