车上都是雪用英语怎么说

"The car is covered in snow" 意思是车子上面都是雪。这个表达的来源是源自于英语的语法结构。"Covered" 是动词，表示"覆盖"的意思，而"in" 是介词，表示"在……里面"的意思。所以"covered in" 这个短语的意思就是"被……覆盖"。
例句：
The car is completely covered in snow. 车子完全被雪覆盖了。
I couldn't see through the window because it was covered in frost. 我看不到窗外的景色，因为窗户上面有霜。
The streets were covered in ice, so I had to be careful when driving. 街道上面全都是冰，所以我开车的时候要小心。