nervation
美 [n?r've???n]
英 [n?:'ve???n] 
英漢解釋
例句
While it was abundantly expressed in the nervation of the leaves, stem near the inflorescence and base of the root.
然而在幼苗的根基部、靠近花序部位的莖中和葉子的經脈中有大量表達;
Nervation, exquisite zigzag edges, let I to nature in awe.
清晰的葉脈、精致的鋸齒邊緣,讓我對自然充滿敬畏。