词汇 | sharpen up |
释义 | Phr V sharpen up sharpens, sharpening, sharpened sharpen up (sb/sth) or sharpen (sb/sth) up to improve something, especially by working hard or practising a lotI need to sharpen up my game before I take Mark on at tennis.He's taking a course in public speaking so that should sharpen him up.We're not the leaders in the field but we're certainly sharpening up. |
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