phrenic vein
英汉例句
- There is a vein of melancholy in his character.
他的性格中有少许忧郁的气质。 - 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。 - A vein of gold was seen cropping out.
可以看见一条金矿矿脉露出地面。 - inferior phrenic vein
膈下静脉 - The central or principal vein of a leaf.
中脉中心的或主要的叶脉