"血刀"是个多义词，它可以指血刀（小说《连城诀》中兵器）,血刀（游戏《金庸群侠传》中道具）。
柳叶刀上有报道说如果供者的血和病人的匹配很好，那么两种方法的白血病的无病生存率很相近。
If the donor blood was well matched to the patient, the rate of leukemia-free surial was similar in both methods, according to the findings published in The Lancet.
武士手持一刀见血的青铜兵器，在为其站岗。
Armed with real bronze weapons still sharp enough to draw blood, the soldiers stood guard.
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