店主用英语可以说作 "shopkeeper"。这个词的来源可能源自中世纪拉丁文 "scoparius"，意为商人或商店的老板。例句如下：

The shopkeeper greeted me with a smile as I entered the store. (店主微笑地向我打招呼，我走进了商店。)

I asked the shopkeeper for help finding a gift for my friend. (我请求店主帮我找一份送给我朋友的礼物。)

The shopkeeper was knowledgeable about the products in the store and was able to answer all of my questions. (店主对商店里的产品很了解，能够回答我所有的问题。)