He will need to sharpen his diplomatic skills in order to work with Congress.(他将需要增强外交技巧以与国会打交道。) Please sharpen the edge of this axe.(请把这把斧头的刃磨快。) Could you sharpen your pencil and show me your eraser?(你能削你的铅笔并给我看你的橡皮吗?) Here is ...