单词	sharp as a tack
释义	请查阅词条：sharp
随便看	skinless skinless skinlet skin-like skin-like skin-like skin lodge skin mag skin magazine skinman skin mark skin merchant skin moth skin name skinned skinned skinner skinner Skinner, B. F. skinner, b f Skinner box skinner, burrhus frederic Skinnerian Skinnerian Skinnerism pH值是什么？ PM2.5对人体有哪些危害? PSG-1狙击步枪 RAM和ROM有什么不同？ R&D是什么的意思? RNA是在哪里形成的？ RPK机关枪 RTB是什么意思? RTD是什么的简称? RU-486如何导致流产？ Saugrohr Saugrohrabschnitt Saugrohranschluß Saugrohraufladung Saugrohrauslegung Saugrohrbeheizung Saugrohrbenzineinspritzung Saugrohrdichtung Saugrohrdruck Saugrohreinspritzanlage