4头猪用英文怎么说

4头猪用英语可以说成 "four pigs" 或者 "four swine".

"Pig" 是指家畜品种之一，属于猪科，通常用来养殖肉和皮肤。"Swine" 是指猪科动物，包括猪、野猪和豚。

下面是一些英文例句和中文翻译：

I have four pigs on my farm. (我的农场里有4头猪。)
These four pigs are very fat and will be ready for market soon. (这4头猪非常肥，很快就可以上市了。)
The farmer sold four pigs at the county fair. (农夫在县城农贸市场上卖了4头猪。)
I can't bepeve I'm eating pork from one of my own four pigs! (我真的不敢相信自己正在吃自己养的4头猪的猪肉！)