trotline

例句：

1. 1. The detective was trying to solve the mystery of the missing treasure by tracing the trottline on the map.
   侦探试图通过在地图上追踪失踪宝藏的线索来解开这个谜团。
2. 2. The artist used a special technique to create a unique trottline that captured the essence of the landscape.
   这位艺术家使用了一种特殊的技巧来创作出独特的线条，捕捉了风景的本质。
3. 3. The scientist conducted experiments to test the hypothesis that the trottline would lead to aspecific location.
   科学家进行了实验来测试假设，即特洛伊线将指向某个特定的位置。