点击下方单词,选择对的这个单词
1. 残存的;残余的;遗留的Vestigial is used to describe the small amounts of something that still remain of a larger or more important thing.
1. not fully developed in mature animals
e.g. rudimentary wings
Synonym: rudimentary
多通过句子记忆单词,而不是单独死记硬背。