Unfortunately belts are worn only by a small percentage of drivers and passengers.

不幸的是,只有数量很少的和旅客系。

One study showed that forty percent of those killed in auto accidents could have been saved if they had been wearing seat belts.

"一项研究表明,车祸中失性命的人中的百分之四十如果他们系上的话本来是可以得救的。"

According to one study, belts are worn only by about fifteen percent of drivers and passengers in cities, and only nine percent in small towns.

根据一项研究,在城市里只有百分之十五的和乘客系,在小城镇,只有百分之九。