sandwich concrete

例句：

1. 1. She ordereda ham and cheese sandwich for lunch.
   她点了一块火腿和奶酪三明治当午餐。
2. 2. The sandwich was delicious, but thebread was stale.
   这三明治很好吃，但是面包很硬。
3. 3. I loveto eat sandwiches for breakfast.
   我喜欢早餐吃三明治。