In order to withstand tidalcurrents, juvenile horseshoe crabs frequently burrow in the sand.
为了抵御潮汐，幼年马蹄蟹经常在沙子里挖洞。
2
The best sites are between islands or around heavily indented coasts where there are strong tidalcurrents.
最佳选址是在岛屿之间或有强烈潮汐流的锯齿状海岸周围。
3
When fully grown, however, the crabs can readily withstand tidalcurrents without burrowing, and thus they acquire substantial populations of barnacles.