The number of car accidents fell last year.

去年车祸的数目减少了。

The total number of cars that did this was more than 900.

这样做的车辆总数超过了900。

Once a certain number of cars get on the highway, traffic slows to a crawl.

一旦有一定数量的汽车上了高速公路，交通就会慢下来。

When the number of cars is doubled, the pollution is also doubled, or even worse.

当汽车的数量加倍时，污染也加倍，甚至更糟。

There's also have a car park, but it only holds a limited number of cars.

这里还有一个停车场，不过只能容纳少数车辆。

We take the number of cars on the road: 250 million cars.

我们假设路上有2.5亿辆车。

That is more than two times the number of cars on the road in the United States.

这是美国道路上汽车数量的两倍多。

At the 66 Drive-In, the average number of cars on a given night has dropped from 225 to 120.

就拿66号汽车影院而言，每晚接待的平均汽车数量已经从225辆下降到120辆。

You can have -- if you succeed, traffic jams will be eliminated because you are eliminating the number of cars.

如果你成功了的话，你就可以根除交通堵塞问题了，因为你大大减少了汽车的数量。

" Traffic" normally refers to the number of cars on the road.

“交通”通常是指道路上的汽车数量。

On ramps, replacing 10% of the cars doubled the number of cars passing through.

在坡道上，更换 10% 的汽车会使通过的汽车数量增加一倍。

This will lead to a decrease in the number of cars on the road.

这将导致道路上的汽车数量减少。

The number of cars on our roads rose dramatically last year.

【number】去年道路上的汽车数量剧增。

Officials in Bangkok are trying to reduce the number of cars on the road in an effort to tackle air pollution.

曼谷的官员正在努力减少道路上的汽车数量，以解决空气污染问题。

World Car-Free Day aims to take a sizeable number of cars off the streets for all or part of a day.

世界无车日的目标是在全天或一天的某一时段内减少街道上的大量汽车。

That's the expected number of cars in an hour divided by number seconds in an hour.

这是一个小时内预期的汽车数量除以一小时内的秒数。

This is the number of cars that pass in an hour.

这是一个小时内通过的汽车数量。

(2). The number of cars on our streets is growing

汽车数量的增加，。

Ride-sharing has perhaps most positively affected the environment by reducing the number of cars on the road.

通过减少道路上的汽车数量， 拼车可能对环境产生了最积极的影响。

We're trying to limited the number of cars on the mountain and try to use more buses.

我们正在努力限制山上的汽车数量并尝试使用更多的公共汽车。