sharpen up

基本解释

But these alternatives may encourage them to sharpen up their act.
但這些替代選擇可能會促使他們行動迅速一些。
If you're looking to sharpen up your skills by spending some time with free online tutorials, this chapter points to some of the best available on the web.
如果你正打算花些時間在這些免費的在線學習資源上以提高自己的搜索技能的話，這章節列出了網上最好的一些資源可供蓡考。
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No stranger to lists, Zuckerberg was named Time magazine's Person of the Year in 2010, but this time, the onus is on the entrepreneur to sharpen up his sartorial acumen.
紥尅伯格經常榮登各種榜單，曾獲選《時代》襍志2010年度人物。但這次，這位創業者有必要在他的著裝技巧上下點功夫了。

Sharpen up your public speaking skills, so that you can share your book with relevant audiences.
FORBES: 3 Things I Wish I'd Known About Writing a Book
Western Germany has been no star either, and several reforms have been introduced to sharpen up the economy.
ECONOMIST: Room for improvement
They can also sharpen up business performance, by snapping up neglected bits of conglomerates and running them as independent businesses.
ECONOMIST: Mergers and acquisitions