单词 | sharpen up |
释义 | sharpen up 🄰 vt. sep. to sharpen up sthorto sharpen sth up使改进 The fashion designers have sharpened up their act in the last few years.时装设计师在过去的几年间表现得更出色了。 🄱 vi. 更敏锐;改进 If he really wants to sell his product, he'll have to get his marketing boys to sharpen up.如果他真想卖出产品, 就要让市场人员变得更机敏。 |
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