barnacles

/ˈbɑːr.nə.kəl/

名词

（岩石、船底等处的）附着甲壳动物，藤壶
The boat's hull was covered in barnacles, causing it to move much slower through the water.
这艘船的船身被海藻覆盖，导致它在水中移动得更慢。