cardinal

至关重要的；关键的

Of fundamental importance; crucial, pivotal.

与方位有关的(北、南、东、西)

Of or relating to the cardinal directions (north, south, east and west).

表示数量的“自然”数(如零、一、二、三),与表示顺序的序数相对

Describing a “natural” number used to indicate quantity (e.g., zero, one, two, three), as opposed to an ordinal number indicating relative position.

鲜红色的(源自天主教红衣主教的法衣颜色)

Having a bright red color (from the color of a Catholic cardinal’s cassock).