a person whose job is to visit or phone a shop or other business, or use their website, pretending to be a customer, in order to get information on the quality of the service, the facilities, etc.神秘顾客（受雇假扮成顾客去了解服务质量等的人）
The best way to find out how your company is running is by using a mystery shopper.找出您公司运作方式的最佳方法是使用神秘购物者。
Stores and restaurants that have many or even thousands of different locations rely on mystery shoppers all over the country, to check every store.遍布许多甚至数千个不同地点的商店和餐馆都依赖全国各地的神秘购物者来检查每家商店。