n.符号；手势；迹象；指示牌vt.& vi.签名；打手势； 变形： 复数：signs过去式：signed过去分词：signed现在分词：signing第三人称单数：signs 双语释义：n.(名词)[C] 标记,符号 a standard mark; sth which is seen and represents a generally-known meaning[C] 手势,姿势,信号 a movement of the body intended to express a particular me