1、四用英语的写法是：four，读音为：英 [fɔː(r)]、美 [fɔːr]。

2、示例：It is estimated the project will last four years. 意思是：据估计，这项工程将持续四年。The child disappeared from his home some time after four. 意思是：这孩子四点多的时候就离家不见了。