nodin.节(难点;错综复杂)
nodv.点头;打盹;(使)摆动n.点头;同意
nod sb. a welcome向某人点头表示欢迎
Nod affably to sb.向某人和蔼地点头
nodus and resistance难点与阻力
nodular growth phase球状成长相
nodular worm disease结节病, 结节线虫病
nodus suprapyloricus幽门上淋巴结
nod at her and smile望她点头笑了笑
Nodamura virus group罗达梦拉病毒组