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TOEFL BNC: 7542 COCA: 8298

sharpen

verb
/ˈʃɑːpən/
/ˈʃɑːrpən/
Verb Forms
present simple I / you / we / they sharpen
/ˈʃɑːpən/
/ˈʃɑːrpən/
he / she / it sharpens
/ˈʃɑːpənz/
/ˈʃɑːrpənz/
past simple sharpened
/ˈʃɑːpənd/
/ˈʃɑːrpənd/
past participle sharpened
/ˈʃɑːpənd/
/ˈʃɑːrpənd/
-ing form sharpening
/ˈʃɑːpənɪŋ/
/ˈʃɑːrpənɪŋ/
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  1. [transitive, intransitive] sharpen (something) to make something sharper; to become sharper（使）变得锋利，变得清晰
    • She sharpened her pencils and started drawing.她削尖铅笔，开始画画。
    • 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。
  2. [intransitive, transitive] sharpen (something) if a sense or feeling sharpens or something sharpens it, it becomes stronger and/or clearer（使感觉或感情）加强，加重，变得更明显
    • Her hearing was sharpened by fear.恐惧使她的听觉变得敏锐。
    • The sea air sharpened our appetites.海上的空气增进了我们的食欲。
    • Clare’s kindness sharpened his awareness of the differences between them.克莱尔的善良加深了他对他们之间差异的认识。
  3. [transitive] sharpen something to make an issue or topic of discussion 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。
  4. [intransitive, transitive] to become or make something better, more effective, etc. than before（使）提高，改善 synonym improve
    • sharpen (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。
    • sharpen something (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。
    • We’re looking to sharpen up the product’s image.我们希望提高产品的形象。
  5. [intransitive, transitive] sharpen (something) if your voice sharpens or something 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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