短语词组短语keenness rat hole 方钻杆用鼠洞K -keenness 敏锐Keenness of Two Alike 相似的敏锐angle of keenness 税利角;翻译intelligence and keenness 勤与专angle of keenness detail 锐利角keenness in appreciating the object 眼中无障 返回 keenness