He noticed that the profit margins on the goods the store carried were very low, and decided to expand its operations. He astutely realized there was a demand among the officers and men for drinks and snacks in their off-duty hours, so he started selling ludan (eggs cooked with spices in soy sauce), wax gourd tea and so on, and did a brisk trade.
他發現原有的貨品利潤微薄，決定擴大營業，看準了官兵閒來無事喝點小酒的需求，開發滷蛋、冬瓜茶等項目，果然生意大好。