aindexarrowworm./ar-oh-wurm/US // ˈær oʊˌwɜrm //UK // (ˈærəʊˌwɜːm) //箭虫,箭头虫,箭毒虫,箭毒Definitionsn.noun · 名词1.›any small, translucent marine worm of the phylum Chaetognatha, having lateral and caudal fins.Level 5More words in a →