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?cái)?shù)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。