| 单词 | sharpen |
| 释义 | sharp·enBrE /ˈʃɑːpən/ NAmE /ˈʃɑːrpən/ verb present simple - I / you / we / they sharpenBrE /ˈʃɑːpən/ NAmE /ˈʃɑːrpən/ present simple - he / she / it sharpensBrE /ˈʃɑːpənz/ NAmE /ˈʃɑːrpənz/ past simple sharpenedBrE /ˈʃɑːpənd/ NAmE /ˈʃɑːrpənd/ past participle sharpenedBrE /ˈʃɑːpənd/ NAmE /ˈʃɑːrpənd/ -ing form sharpeningBrE /ˈʃɑːpənɪŋ/ NAmE /ˈʃɑːrpənɪŋ/ [T , I ]~ (sth )to make sth sharper ; to become sharper （使）变得锋利，变得清晰◆ This knife needs sharpening . 这把刀需要磨了。◆ The outline of the trees sharpened as it grew lighter . 随着天色转亮，树的轮廓变得清晰了。[I , T ]~ (sth )if a sense or feeling sharpens or sth sharpens it , it becomes stronger and /or clearer （使感觉或感情）加强，加重，变得更明显◆ The sea air sharpened our appetites . 海上的空气增进了我们的食欲。[T ]~sth to make a disagreement between people , or an issue on which people disagree , clearer and more likely to produce a result 使尖锐；使明朗◆ There is a need to sharpen the focus of the discussion . 有必要使讨论的焦点更加集中。[I , T ]to become or make sth better , more skilful , more effective , etc . than before （使）提高，改善SYN improve◆ ~ (up )He needs to sharpen up before the Olympic trials . 在奥运会选拔赛之前，他需要进一步磨砺自己。◆ ~sth (up )She's doing a course to sharpen her business skills . 她正进修，以提高自己的业务技能。[I , T ]~ (sth )if your voice sharpens or sth sharpens it , it becomes high and loud in an unpleasant way （使声音）变得尖锐，变得刺耳 |
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