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A Stanley knife is a very sharp knife that is used to cut materials such as carpet and paper. It consists of a small blade fixed in the end of a handle. 斯坦利木工刀
[英国英语][trademark]
On 25 June he approached Lewis Sives who had been at school with him, but as they entered St Martin's Lane, in Tranent, he took out what appeared to be a Stanleyknife and began shouting at him.