点击下方单词,选择对的这个单词
1. 基数A cardinal number is a number such as 1, 3, or 10 that tells you how many things there are in a group but not what order they are in.
1. the number of elements in a mathematical setdenotes a quantity but not the order
Synonym: cardinal
名词ordinal number
多通过句子记忆单词，而不是单独死记硬背。
