knobn.旋钮；把手；瘤；节；圆丘knob control按钮控制Knobbed porgy瘤突芦鲷knob of feces粪石knobbled iron熟铁,锻铁knob celeriac根芹菜knob fastener钮销knobbly knees长着很多结节的膝盖.knobcone pine球锥松knob and trail丘尾痕Knobbed Nutmegn.纵瘤核螺(核螺超科；核螺科)