Problem description:

I often see the name Thousand Island Sauce on the menu. What is it? Why is it called Qiandao Lake? Any allusions?

Analysis:

Everyone has eaten western food and salad. There are many kinds of salad soy sauce, one of which is called Thousand Island Sauce. This sauce is named after Qiandao Lake, a scenic tourist attraction in the United States. Qiandao Lake is not far from Kingston. According to the tour guide, Qiandao Lake is connected with the Atlantic Ocean and has 1865 islands. The center of the lake is the dividing line, with New York State in the United States in the south and Ontario in the north. The water in Qiandao Lake is as deep and blue as the sea, as wide and open as the ocean, and as bright and quiet as a mirror. Basically, there are houses on every island, some luxurious, some ordinary, and it is unknown whether anyone lives there.

......