短语词组短語keenness rat hole 方鑽杆用鼠洞K -keenness 敏銳Keenness of Two Alike 相似的敏銳angle of keenness 稅利角;繙譯intelligence and keenness 勤與專angle of keenness detail 銳利角keenness in appreciating the object 眼中無障 返回 keenness