Some friends talk much more keen-edged problems in their blogs than me.
有的朋友的博客比我的博客讨论的问题尖锐多了。
Fine also means' delicate, thin or slender '. 'Keen-edged and penetrating' too, like a fine blade or a fine point.
这个字眼还有“纤细，薄或修长”的意思，即尖锐而有穿透力，好比纤细的刀刃或锋利的刀尖那般。
They say she was like a blade herself, as sharp and keen-edged and quick, as if she were made of steel and lightning.
人们说，她就像是一把剑，锋利无比，疾如闪电，似乎她本来就是由钢和闪电铸成的。
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