记忆方法
双解例句
小知识
A cardinal is a bright red songbird, and the word also refers to the bird's crimson color. In Catholicism, a cardinal is a high-ranking bishop. In math, you use cardinal numbers to count. A cardinal rule is one that is central and should not be broken.
Okay, that's a lot of definitions. How exactly are they related? In most cases, cardinal means central or essential. It's a cardinal principle that you use it to describe words of behavior like rule or sin. In the Church, cardinals form the central governing body, and in math the cardinal numbers (one, two, three) are the numbers you learn and use first.
实用短语
常用短语
单词用法
词根词缀
词根: card
1. =heart,表示”心脏,一致”; 2. =paper,表示”纸片”
adj.
cardiac 心脏的card心脏,一致+iac→adj.心脏的
cardinal 首要的,基本的card心脏,一致+inal→心一样的→首要的
n.
cardinal [天主教的]红衣主教card心脏,一致+inal→心一样的→首要的
electrocardiogram [医]心电图electr电+o+card心+io+gram图→n.[医]心电图
tachycardia [医]心动过速tarchy快+card心脏,一致+ia病→心跳快的病
v.
discard 丢弃,抛弃dis去掉+card纸片→把[废纸]扔掉→抛弃