| 单词 | sharpen |
| 释义 | sharpen v[I, Tn] (cause sth to) become sharp （使某物）锋利, 尖锐, 陡峭, 清晰, 强烈 The tone of his letters has sharpened (ie become less friendly) recently. 他最近来信的口气变得刻薄起来. sharpen a pencil 削铅笔 This knife needs sharpening. 这把刀要磨一下. This incident has sharpened public awareness of the economic crisis. 这件事提高了公众对经济危机的认识. sharpen sb´s wits, ie make sb more mentally alert 使某人更机智. |
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