公车数量超标的英文：
an excessive number of government vehicles

excessive是什么意思：
adj. 过多的，过分的；极度的

The gentleman was excessively civil.
那个男人非常谦恭有礼。

There's no excess to pay.
不需要付超重费。

You will lose if you go to excess.
如果你继续走极端，那么你将会失败。

number是什么意思：
n. 数；号码；算数
v. 给…编号；计算，数

The number was fifty.
该数字为五十。

There is safety in numbers
人多势众

It was an irrational number.
这是一个无理数。

government是什么意思：
n. 政府；政体；行政管理

The earliest civilized governments were thus priestly governments
因此最早的文明的政体是僧侣政体。

He qualified for a government grant.
他获准享受政府补助。

The government will not task the people in this item.
在这个项目上，政府不再向人民课税。