sharpenvt.使尖锐;磨快;加剧vi.变尖锐
sharpening of front前沿变尖
sharpen competition使竞争激化
sharpening forensics锐化取证
sharpen one's pencil森佩雷
sharpen my knife forvt.准备惩罚
sharpen the appetite增进食欲
sharpen his knife forvt.准备惩罚
sharpen understanding加深理解
sharpen her knife forvt.准备惩罚
sharpen our knife forvt.准备惩罚