sandwich的复数形式怎么写

例句：

The sandwich took the edge off my appetite.

这份三明治使我食欲大减。

We made mountains of sandwiches.

我们做了一大堆三明治。

Would you like a sandwich?

您来一个三明治好吗？

I ordered a beer and a sandwich.

我要了一杯啤酒，一个三明治。