sharpen 英 [ˈʃɑ:pən] 　 美 [ˈʃɑrpən]

sharpen

sharpen　 英 [ˈʃɑ:pən] 美 [ˈʃɑrpən]

v. 使尖锐，使清晰，使明朗；改善　

进行时:sharpening　 过去式:sharpened　 过去分词:sharpened　 第三人称单数:sharpens　 名词复数:sharpens　

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。

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  • v. 使尖锐，使清晰，使明朗；改善

  • 1. This knife needs sharpening.

    这把刀需要磨了。

  • 2. 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。

  • 3. The sea air sharpened our appetites.

    海上的空气增进了我们的食欲。

  • 4. There is a need to sharpen the focus of the discussion.

    有必要使讨论的焦点更加集中。

  • 5. 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。

  • 6. She's doing a course to sharpen her business skills.

    她正进修，以提高自己的业务技巧。

  • sharpen (v.) 1520s, "bring to an edge or point," from sharp (adj.) + -en (1). Related: Sharpened; sharpening. Old English verb scearpian meant "to score, scarify;" also compare scearpung "scarifying." To sharpen (one's) pencil "prepare to get to work" is from 1957, American English.
sharp·en / ˈʃɑːpən ; NAmE ˈʃɑːrpən / verb 1 [transitive ,  intransitive ] sharpen(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。 2 [intransitive ,  transitive ] sharpen(sth) if a sense or feeling sharpensor sth sharpensit, 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。 3 [transitive ] sharpensth 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。 4 [intransitive ,  transitive ] to become or make sth better, more skilful, more effective, etc. than before （使）提高，改善 SYN 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。 sharpensth (up) ◆ She's doing a course to sharpen her business skills. 她正进修，以提高自己的业务技巧。 5 [intransitive ,  transitive ] sharpen(sth) if your voice sharpensor sth sharpensit, it becomes high and loud in an unpleasant way （使声音）变得尖锐，变得刺耳 sharpen sharpens sharpened sharpening sharp·en / ˈʃɑːpən ; NAmE ˈʃɑːrpən /
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