sandwich heating

例句：

1. 1. She ordered a large sandwich for lunch.
   她点了一个大三明治当午餐。
2. 2.The sandwich was delicious, but the bread was stale.
   这个三明治很好吃，但是面包很硬。
3. 3. He ate his sandwich slowly, savoring every bite.
   他慢慢地吃着三明治，细细品味每一口。