sharpen

sharpen汉语翻译：vt. 使尖锐, 使敏捷, 加重, 削尖vi. 尖锐化, 变锋利词型变化：名词:sharpener动词过去式:sharpened过去分词:sharpened现在分词:sharpening第三人称单数:sharpens英语解释：动词 sharpen:make sharp or sharper make sharp or sharper become sharp or...