柯林斯词典sharpener /ˈʃɑːpənə/ (sharpeners) 1. N-COUNT A sharpener is a tool or machine used for sharpening pencils or knives. 磨具; 卷笔刀 ...a pencil sharpener. …一个卷笔刀。 返回 sharpener剑桥词典a machine or tool for making things such as pencils or knives sharper 磨具；削具 a pencil /knife sharpener 卷笔刀／磨刀石 返回 sharpener