detritus
n. (尤指某项活动后留下的)废弃物,垃圾;(由于侵蚀形成的)沙砾,沙子,泥沙等;(有机物的)腐质
例句
These unassignable animals include a large swimming predator called Anomalocaris and a soft-bodied animal called Wiwaxia, which ate detritus or algae.
这些无法归类的动物包括被称为奇虾的会游泳的大型食肉动物,以及叫做威瓦亚虫的软体动物,它们以岩屑和藻类为食。