circuitKK [ˋsɝkət] /ˈsɝkət/發音circu 圓、環繞+it 行走、去→繞圈行走展開收合circu字根圓、環繞it字根行走、去字面：繞圈行走繞一圈走回原處，引申為環形路線、巡迴，以及電流繞行的迴路。名詞1電路、迴路A loose wire had broken the circuit, so nothing worked.有一條電線鬆了，導致電路中斷，所以什麼都不能用。2賽道、環形跑道The new circuit has fourteen corners and a very long straight.這條新賽道有十四個彎道和一段很長的直線。3巡迴、巡迴賽She spent three years on the stand-up comedy circuit.她在單口喜劇的巡迴演出圈裡待了三年。4一圈、繞行We made one slow circuit of the lake before sunset.日落前我們繞著湖慢慢走了一圈。5巡迴審判區法律The case will be heard by an appeals court in the ninth circuit.這個案子將由第九巡迴審判區的上訴法院審理。動詞1環繞、繞行Two satellites circuit the planet every ninety minutes.兩顆衛星每九十分鐘繞行這顆行星一圈。