Double scraping knife design, double effect, strength the.

双铣刀设计，两次处理，加强处理效果。

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So it can detect whether the knife is slicing, whether it's scraping or what.

所以它能探测出刀是不是在切片，是不是在削之类的。

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The portress set to scraping away the grass from what she called her pavement, with an old knife, and, as she tore out the blades, she grumbled

看门的女人用一把旧刀，把门前被她称作是她的铺路石石缝里长出的青草除去，一边除一边嘟囔着

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