And that crash rate is 2.6 times more than the 700 million years before then.

这个撞击率是7亿年前的2。6倍。

It found that automatic emergency braking systems reduced rear crash rates for pickups by 43 percent.

研究发现，自动紧急制动系统使皮卡的尾部碰撞率降低了43%。

The crash rate rose from around 177 a month before pregnancy to 252 per month during pregnancy.

正常女性的车祸事故率为每月177起，孕妇则为每月252起。