Well, I went down the street to the pharmacy to fill a prescription.

好吧，我走到街上去药房开处方。

To fill a prescription means to get the drugs, to get the medicine.

开处方意味着得到药物，得到药物。

I went to the drugstore down the street to fill a prescription at the pharmacy.

我去了街对面的药店，在药房配药。

The story begins by me saying that, " I went to the drugstore down the street to fill a prescription at the pharmacy." A " drugstore, " all one word, is a store that, as I'd mentioned, sells many things and has a pharmacy in it.

故事开始于我说，“我去了街对面的药店， 在药房配药。 ” 一个“药店” ，一个词，是一个商店， 正如我提到的，卖很多东西和里面有药房。