cardinal veins

常见例句

Persistent left posterior cardinal vein
左后主静脉续存
There is a vein of melancholy in his character.
他的性格中有少许忧郁的气质。
North, south, east, and west are the four cardinal points of the compass.
东、西、南、北是罗盘上的四个方位基点。
She is wearing a cardinal sweater today.
今天她穿了件鲜红的毛衣。
The cardinal number equal to1015.
十的十五次幂基数等于1015。
She helps her mother when she is in the vein.
她在心情好的时候会帮她妈妈的忙。