面包bread是不可数名词，一片面包可以用a piece of bread表示，两片面包是two pieces of bread。
The smell of new bread floated up from the kitchen.
厨房里飘出新鲜面包的香味。
I\'m sorry, we\'ve sold out of bread.
抱歉，我们的面包卖完了。
We had a simple meal of soup and bread.
我们喝汤，吃面包，凑合了一顿。
水利万物而不争,
而万物莫能与之争。
