In order to withstand tidal currents, 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。
Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow.
令人惊讶的是,在潮汐流很弱的地方,幼年马蹄蟹的藤壶数量并不多,尽管它们很少在洞里活动。
After getting to town, the father got some cherries by selling the horseshoe.