例句：

　　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.

　　令人驚訝的是，在潮汐流很弱的地方，幼年馬蹄蟹的藤壺數量并不多，盡管它們很少在洞里活動(dòng)。

　　The barnacle and the clam are two examples of filter feeders.

　　藤壺和蛤類(lèi)是濾過(guò)覓食者的兩種例子。

　　I'm Barnacle Bill. I sank with the Titanic. I rose in salty heaven.

　　我是巴納克·比爾。我跟泰坦尼克一起沉沒(méi)。我在咸咸的天堂里升起。