unpretzel 并不是一个标准词典意义上的常规动词。它来自 pretzel（椒盐卷饼）
椒盐卷饼是一种呈结状的面点
wikipedia解释
- A pretzel (/ˈprɛtsəl/ ⓘ PRET-səl; from German: Breze or Brezel, pronounced [ˈbʁeːtsl̩] ⓘ or [ˈbʁɛtsl̩]; Bavarian: Brezn) is a type of baked pastry made from dough that is commonly shaped into a knot. The traditional pretzel shape is a distinctive symmetrical form, with the ends of a long strip of dough intertwined and then twisted back onto itself in a particular way (a pretzel loop or pretzel bow). Today, pretzels come in various shapes, textures, and colors, but the original soft pretzel remains one of the most common pretzel types
椒盐卷饼（/ˈprɛtsəl/ ⓘ PRET-səl；源自德语：Breze 或 Brezel，发音 [ˈbʁeːtsl̩] ⓘ 或 [ˈbʁɛtsl̩]；巴伐利亚语：Brezn）是一种用面团制成的烘焙糕点，通常塑成结状。传统椒盐卷饼的造型具有鲜明的对称特征：将长条面团的两端交缠后，以特定方式回折扭结（形成椒盐卷饼环或椒盐卷饼弓）。如今椒盐卷饼的形状、质地和颜色已呈现多
