Because at Passover, when we have to eat unleavened bread, the rabbis say, what is the difference between dough that is made into bread, and dough that is made into unleavened bread, or "matzah"?
因为在逾越节，我们必须吃无酵面包 拉比会告诉我们用于制作普通面包的生面团 和制作无酵面包，也就是酵饼的生面团的区别