"Supermarket across from the hospital" 可以用英语表达为 "Supermarket opposite the hospital"。
"Opposite" 是英语中的一个副词，意思是“在对面”。它来源于拉丁语 "oppositus"，意思是“面对面的，对立的”。
例句：
The museum is opposite the park. (博物馆在公园对面。)
The supermarket is located opposite the hospital. (超市位于医院对面。)
I'll meet you at the coffee shop opposite the post office. (我会在邮局对面的咖啡馆见你。)