wedged rail anchor

例句：

1. 1.The ship was anchored securely in the harbor to prevent it from drifting away.
   这艘船被安全地锚在港口，以防它漂移。
2. 2. The boat was wedged between two rocks, unable to move.
   船被夹在两块岩石之间，无法移动。
3. 3. The anchor was set deep into the water, securing the vessel firmly in place.
   锚被深深地设置在水中，使船只牢牢固定。