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sharpen
英/ʃˈɑːpən/
美/ˈʃɑɹpən/
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01v.
使尖锐, 使敏捷, 加重, 削尖
make sharp or sharper; make crisp or more crisp and precise; become sharp or sharper; make (images or sounds) sharp or sharper
02v.
尖锐化, 变锋利
make sharp or sharper; make crisp or more crisp and precise; become sharp or sharper; make (images or sounds) sharp or sharper