- answer up迅速回答; 清晰地讲;直言不讳地回答; 照实回答;
- add up to总计达;<口>等于; 意味着; 总起来说;
- add up加起来; 总计;与应有的数量相符;<口>合乎情理;
- act up（病痛等）复发;炫耀;行动倔强;（机器等）功能失常;
- buy up全部买下;买进;
- buttoned upadj.守口如瓶的;
- button up扣紧;顺利完成;
- butter up阿谀奉承;
- bust up（尤指夫妻之间）争吵而离异;使终止，破坏;
- burst upv.爆炸，失败，垮台;
- burn upv.烧起来，烧掉，发怒;毁;烧毁;
- bulk up增加，积累;
- built up[机] 组合;
- build up stamina增强耐力
- build up逐步建立;增进;（在某个地方）盖满了建筑物;宣扬;
- build someone up建立一个人
- buckle up系好（安全带）;
- buck up赶快; 加快;振作起来;加把劲;
- buck sb. up扣某人 向上
- bubble upv.冒泡，沸腾;
- 双语例句
1、
Ginny tried to sharpen up some rusty typing skills.
金尼试图重拾生疏了的打字技术。
——柯林斯例句
2、
She needs to sharpen up before next month's competition.
下个月比赛之前,她的水平需要提高一下.
《简明英汉词典》
3、
We need to sharpen up this knife.
我们必须把这小刀削尖.
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4、
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。
柯林斯例句
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