n.静脉文理；脉纹的排列
There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
The heart pumps blood into the veins. 心脏把血液送至血管。
I could feel blood pulsing through my veins. 我感到浑身血液在沸腾。
I am not in the vein for work. 我没有心情工作。
