My brother and I made a bargain that I would wash the dishes if he would dry them.
问题描述：
My brother and I made a bargain that I would wash the dishes if he would dry them.
这里if是什么用法?应该是可以用and来代替的吧?
答
就是用if
这句话句意是“我兄弟和我讨价还价,如果他肯擦盘子我就洗盘子”