| 词组 | sharpen up |
| 释义 | sharpen up 1. sharpen up sth • sharpen sth up to improve something so that it reaches the necessary standard or quality: ▪ We need a few more rehearsals to sharpen up the dance routine. 2. sharpen up to become more skilled and effective and more determined to succeed: ▪ Dobson has sharpened up by training with Olympic sprinter David Grindley. 3. sharpen up sth • sharpen sth up if you sharpen up a picture or photograph, you make it clearer so that all the details can be seen: ▪ By using digital technology we can sharpen up the picture on your television screen. |
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