active ridge

例句：

1. 1. The active ridge is a major factor in the formation of new landmasses.
   活跃的脊线是形成新陆地的主要因素。
2. 2. The active tectonic plate is responsible for the earthquakes that occur in this region.
   活跃板块负责该地区发生的地震。
3. 3. The active fault has caused several landslides in the past few years.
   活跃断层在过去几年里引发了几次山体滑坡。