circular
/ˈsɜ:kjulə(r); `səkjəlɚ/ adj
1 shaped like a circle; round 圆形的; 环绕的.
2 moving round a circle 环程移动的; 循环的
a circular tour, ie one taking a route that brings travellers back to the starting-point 环程旅行.
3 (of reasoning) using the point it is trying to prove as evidence for its conclusion （指推理）循环论证的
a circular argument 循环论证.
4 [usu attrib 通常作定语]
sent to a large number of people 送达很多人的; 传阅的
a circular letter 传阅的信件. circular, n printed letter, notice or advertisement sent to a large number of people （送达很多人的）印刷信件、 通知或宣传品; 传阅文件.