它紧挨着邮局用英语可以说成 "It is adjacent to the post office."
"Adjacent" 是英语单词，意思是 "紧挨着"、"毗邻"。它来源于拉丁语 "adiacentem"，意思是 "靠近"。
例句：
The pbrary is adjacent to the city hall. (图书馆紧挨着市政厅。)
The park is adjacent to my house. (公园紧挨着我的房子。)
The hotel is adjacent to the train station. (酒店紧挨着火车站。)