公车私用的英文：
government cars used for private purpose

参考例句：

The newspapers have made a dead set at this politician for using his official car for private purposes.
报纸一致抨击这位政客将公车私用。

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。

cars是什么意思：
n. 汽车；车厢

Is it a French car or a Japanese car?
它是一辆法国的车还是一辆日本的车？

This is a vintage car.
这是辆老爷车 。

The car has a flat.
这车有一只轮胎泄了气。

used是什么意思：
adj. 用过的，旧的；习惯于…的

It is used as a reflexive.
它被作为反身代词使用。

That was a balk to us.
那对我们是个挫折。

They help us to be maximal encouraging to us.
他们来帮助我们对我们是个极大的鼓舞。