irregular boundary point

例句：

1. 1. The irregular boundary between the two countries is causing tension.
   两国之间的不规则边界正引发紧张。
2. 2. The irregular growth pattern of the plant is a concern for scientists.
   这种植物不规则的生长模式让科学家们感到担忧。
3. 3. The irregular shape of the rock formations is fascinating to geologists.
   岩石形成物的不规则形状对地质学家来说非常吸引人。