vt.领导；引导；指挥；vi.领导；导致；用水砣测深；n.铅；领导；榜样；枪弹adj.领头的；最重要的；领先的； 变形： 复数：leads过去式：led过去分词：led现在分词：leading第三人称单数：leads 双语释义：n.(名词)[U]铅 heavy soft metal of dull greyish colour, used for water pipes, in roofing, as a radiation shield[C][U]铅笔芯 the thin black part of a