vt.巡回，周游（circuit的过去式与过去分词形式）； 双语释义：n.(名词)[C]电路,线路 the complete circular path of an electric current[C]巡回(路线); 绕道,迂回 a curving path that forms a complete circle round an area英英释义： circuit[ 'sə:kit ]n.an electrical device that provides a path for electrical